##### SUMMARY

The list subcommand throws a lot of warnings about a missing version if the collection was not built and installed via an artifact. This information can often be obtained in the galaxy.yml though, so it would make sense to fallback to that ...

```
(ansible_base) [vagrant@centos8 ~]$ ansible-galaxy collection list
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/azure/azcollection' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cyberark/bizdev' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/google/cloud' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/netbox_community/ansible_modules' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/splunk/enterprise_security' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/ansible/netcommon' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/check_point/mgmt' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/f5networks/f5_modules' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/ibm/qradar' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/openstack/cloud' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/vyos/vyos' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/arista/eos' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/iosxr' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/ucs' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/aci' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/meraki' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/intersight' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/mso' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/ios' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/cisco/nxos' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/fortinet/fortios' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/junipernetworks/junos' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/purestorage/flasharray' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/purestorage/flashblade' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/awx/awx' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/community/grafana' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/community/kubernetes' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/community/amazon' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/community/vmware' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/community/general' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/gavinfish/azuretest' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/netapp/aws' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/netapp/elementsw' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/netapp/ontap' does not have a MANIFEST.json file, cannot detect version.
[WARNING]: Collection at '/home/vagrant/.ansible/collections/ansible_collections/servicenow/servicenow' does not have a MANIFEST.json file, cannot detect version.

# /home/vagrant/.ansible/collections/ansible_collections
Collection                       Version
-------------------------------- -------
ansible.netcommon                *      
arista.eos                       *      
awx.awx                          *      
azure.azcollection               *      
check_point.mgmt                 *      
cisco.aci                        *      
cisco.intersight                 *      
cisco.ios                        *      
cisco.iosxr                      *      
cisco.meraki                     *      
cisco.mso                        *      
cisco.nxos                       *      
cisco.ucs                        *      
community.amazon                 *      
community.general                *      
community.grafana                *      
community.kubernetes             *      
community.vmware                 *      
cyberark.bizdev                  *      
f5networks.f5_modules            *      
fortinet.fortios                 *      
gavinfish.azuretest              *      
google.cloud                     *      
ibm.qradar                       *      
junipernetworks.junos            *      
netapp.aws                       *      
netapp.elementsw                 *      
netapp.ontap                     *      
netbox_community.ansible_modules *      
openstack.cloud                  *      
purestorage.flasharray           *      
purestorage.flashblade           *      
servicenow.servicenow            *      
splunk.enterprise_security       *      
vyos.vyos                        *
```


##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
ansible-galaxy collection list

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
devel
```


self._get_metadata()
        return self._metadata
    @property
    def versions(self):
        if self.allow_pre_releases:
            return self._versions
        return set(v for v in self._versions if v == '*' or not SemanticVersion(v).is_prerelease)
    @versions.setter
    def versions(self, value):
        self._versions = set(value)
    @property
    def pre_releases(self):
        return set(v for v in self._versions if SemanticVersion(v).is_prerelease)
    @property
    def latest_version(self):
        try:
            return max([v for v in self.versions if v != '*'], key=SemanticVersion)
        except ValueError:  
            return '*'
    @property
    def dependencies(self):
        if not self._metadata:
            if len(self.versions) > 1:
                return {}
            self._get_metadata()
        dependencies = self._metadata.dependencies
        if dependencies is None:
            return {}
        return dependencies
    def add_requirement(self, parent, requirement):