### Summary

If a galaxy requirements file contains collections that have signatures defined, then `ansible-galaxy role install` with that requirements file fails because a keyring is not supplied.

### Issue Type

Bug Report

### Component Name

ansible-galaxy

### Ansible Version

```console
$ ansible --version

ansible [core 2.13.0.dev0] (devel ff184b0815) last updated 2022/03/24 16:21:31 (GMT -400)
  config file = /home/shrews/.ansible.cfg
  configured module search path = ['/home/shrews/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/shrews/Devel/github/Shrews/ansible/lib/ansible
  ansible collection location = /home/shrews/.ansible/collections:/usr/share/ansible/collections
  executable location = /home/shrews/Devel/github/Shrews/ansible/bin/ansible
  python version = 3.9.7 (default, Sep 10 2021, 14:59:43) [GCC 11.2.0]
  jinja version = 3.1.0
  libyaml = True
```


### Configuration

```console
$ ansible-config dump --only-changed

DEFAULT_HOST_LIST(/home/shrews/.ansible.cfg) = ['/home/shrews/Devel/ansible/hosts.yaml']
```


### OS / Environment

Ubuntu 21.10

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)

$ cat req.yml 
collections:
  - name: community.mysql
    signatures:
      - file:///home/shrews/test.asc

$ ansible-galaxy role install -r req.yml 
ERROR! Signatures were provided to verify community.mysql but no keyring was configured.
```


### Expected Results

`role install` should ignore collection signatures

### Actual Results

```console
$ ansible-galaxy role install -r req.yml -vvvv

ansible-galaxy [core 2.13.0.dev0] (devel ff184b0815) last updated 2022/03/24 16:21:31 (GMT -400)
  config file = /home/shrews/.ansible.cfg
  configured module search path = ['/home/shrews/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/shrews/Devel/github/Shrews/ansible/lib/ansible
  ansible collection location = /home/shrews/.ansible/collections:/usr/share/ansible/collections
  executable location = /home/shrews/Devel/github/Shrews/ansible/bin/ansible-galaxy
  python version = 3.9.7 (default, Sep 10 2021, 14:59:43) [GCC 11.2.0]
  jinja version = 3.1.0
  libyaml = True
Using /home/shrews/.ansible.cfg as config file
Reading requirement file at '/home/shrews/req.yml'
ERROR! Signatures were provided to verify community.mysql but no keyring was configured.
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
display.display(yaml_dump(collections_in_paths))
        return 0
    def execute_publish(self):
        """
        Publish a collection into Ansible Galaxy. Requires the path to the collection tarball to publish.
        """
        collection_path = GalaxyCLI._resolve_path(context.CLIARGS['args'])
        wait = context.CLIARGS['wait']
        timeout = context.CLIARGS['import_timeout']
        publish_collection(collection_path, self.api, wait, timeout)
    def execute_search(self):
        ''' searches for roles on the Ansible Galaxy server'''
        page_size = 1000
        search = None
        if context.CLIARGS['args']:
            search = '+'.join(context.CLIARGS['args'])
        if not search and not context.CLIARGS['platforms'] and not context.CLIARGS['galaxy_tags'] and not context.CLIARGS['author']:
            raise AnsibleError("Invalid query. At least one search term, platform, galaxy tag or author must be provided.")
        response = self.api.search_roles(search, platforms=context.CLIARGS['platforms'],
                                         tags=context.CLIARGS['galaxy_tags'], author=context.CLIARGS['author'], page_size=page_size)
        if response['count'] == 0:
            display.display("No roles match your search.", color=C.COLOR_ERROR)
            return True
        data = [u'']
        if response['count'] > page_size:
            data.append(u"Found %d roles matching your search. Showing first %s." % (response['count'], page_size))
        else:
            data.append(u"Found %d roles matching your search:" % response['count'])
        max_len = []
        for role in response['results']: