### 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
default=C.GALAXY_DISABLE_GPG_VERIFY,
                                        help='Disable GPG signature verification when installing collections from a Galaxy server')
            install_parser.add_argument('--signature', dest='signatures', action='append',
                                        help='An additional signature source to verify the authenticity of the MANIFEST.json before '
                                             'installing the collection from a Galaxy server. Use in conjunction with a positional '
                                             'collection name (mutually exclusive with --requirements-file).')
            install_parser.add_argument('--required-valid-signature-count', dest='required_valid_signature_count', type=validate_signature_count,
                                        help=valid_signature_count_help, default=C.GALAXY_REQUIRED_VALID_SIGNATURE_COUNT)
            install_parser.add_argument('--ignore-signature-status-code', dest='ignore_gpg_errors', type=str, action='append',
                                        help=ignore_gpg_status_help, default=C.GALAXY_IGNORE_INVALID_SIGNATURE_STATUS_CODES,
                                        choices=list(GPG_ERROR_MAP.keys()))
        else:
            install_parser.add_argument('-r', '--role-file', dest='requirements',
                                        help='A file containing a list of roles to be installed.')
            if self._implicit_role and ('-r' in self._raw_args or '--role-file' in self._raw_args):
                
                install_parser.add_argument('--keyring', dest='keyring', default=C.GALAXY_GPG_KEYRING,
                                            help='The keyring used during collection signature verification')
                install_parser.add_argument('--disable-gpg-verify', dest='disable_gpg_verify', action='store_true',
                                            default=C.GALAXY_DISABLE_GPG_VERIFY,
                                            help='Disable GPG signature verification when installing collections from a Galaxy server')
                install_parser.add_argument('--required-valid-signature-count', dest='required_valid_signature_count', type=validate_signature_count,
                                            help=valid_signature_count_help, default=C.GALAXY_REQUIRED_VALID_SIGNATURE_COUNT)
                install_parser.add_argument('--ignore-signature-status-code', dest='ignore_gpg_errors', type=str, action='append',
                                            help=ignore_gpg_status_help, default=C.GALAXY_IGNORE_INVALID_SIGNATURE_STATUS_CODES,
                                            choices=list(GPG_ERROR_MAP.keys()))
            install_parser.add_argument('-g', '--keep-scm-meta', dest='keep_scm_meta', action='store_true',
                                        default=False,
                                        help='Use tar instead of the scm archive option when packaging the role.')
    def add_build_options(self, parser, parents=None):