##### SUMMARY
`ansible-base collection list` doesn't show the packages installed by the new `ansible` package

As a workaround, you need to do:

```
COLLECTION_INSTALL=$(python -c 'import ansible, os.path ; print("%s/../ansible_collections" % os.path.dirname(ansible.__file__))')
ansible-galaxy collection list -p "$COLLECTION_INSTALL"
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
ansible-galaxy

##### ANSIBLE VERSION
```paste below
2.10 beta1
```

##### CONFIGURATION
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

1. Install Ansible 2.10.0a1
  https://pypi.python.org/packages/source/a/ansible/ansible-2.10.0a1.tar.gz

2. `ansible-galaxy collection list`

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below

```

'''command to manage Ansible roles in shared repositories, the default of which is Ansible Galaxy *https://galaxy.ansible.com*.'''
    SKIP_INFO_KEYS = ("name", "description", "readme_html", "related", "summary_fields", "average_aw_composite", "average_aw_score", "url")
    def __init__(self, args):
        self._raw_args = args
        self._implicit_role = False
        if len(args) > 1:
            
            if args[1] not in ['-h', '--help', '--version'] and 'role' not in args and 'collection' not in args:
                
                
                idx = 2 if args[1].startswith('-v') else 1
                args.insert(idx, 'role')
                self._implicit_role = True
            
            if args[1:3] == ['role', 'login']:
                display.error(
                    "The login command was removed in late 2020. An API key is now required to publish roles or collections "
                    "to Galaxy. The key can be found at https://galaxy.ansible.com/me/preferences, and passed to the "
                    "ansible-galaxy CLI via a file at {0} or (insecurely) via the `--token` "
                    "command-line argument.".format(to_text(C.GALAXY_TOKEN_PATH)))
                sys.exit(1)
        self.api_servers = []
        self.galaxy = None
        self._api = None
        super(GalaxyCLI, self).__init__(args)
    def init_parser(self):