### Summary

I'm trying to optimise my builds by avoiding unnecessary downloads.
ansible-galaxy install always downloads the latest version even if the existing collection already meets the requirements. This behaviour appears to be consistent with the documentation (https://docs.ansible.com/ansible/latest/galaxy/user_guide.html#installing-an-older-version-of-a-collection), but why has it been implemented to always download ?


e.g. I have
```
# /usr/local/lib/python3.8/site-packages/ansible_collections
Collection                    Version
----------------------------- -------
amazon.aws                    3.5.0  
...
```
and requirements.yml
```
---
collections:
  - name: amazon.aws
    version: '>=1.5.0'
```
if I run ansible-galaxy install -r requirements.yml I get amazon.aws 6.1.0 installed, even though 3.5.0 already meets my 1.5.0 requirement. I would expect nothing to happen because my requirements were already met.

### Issue Type

Feature Idea

### Component Name

ansible galaxy

### Additional Information

People who like the existing behaviour could perhaps use the recently added --upgrade switch to continue to get the upgrade to the lastest version.

### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
self.add_verify_options(collection_parser, parents=[common, collections_path])
        
        role = type_parser.add_parser('role', help='Manage an Ansible Galaxy role.')
        role_parser = role.add_subparsers(metavar='ROLE_ACTION', dest='action')
        role_parser.required = True
        self.add_init_options(role_parser, parents=[common, force, offline])
        self.add_remove_options(role_parser, parents=[common, roles_path])
        self.add_delete_options(role_parser, parents=[common, github])
        self.add_list_options(role_parser, parents=[common, roles_path])
        self.add_search_options(role_parser, parents=[common])
        self.add_import_options(role_parser, parents=[common, github])
        self.add_setup_options(role_parser, parents=[common, roles_path])
        self.add_info_options(role_parser, parents=[common, roles_path, offline])
        self.add_install_options(role_parser, parents=[common, force, roles_path])
    def add_download_options(self, parser, parents=None):
        download_parser = parser.add_parser('download', parents=parents,
                                            help='Download collections and their dependencies as a tarball for an '
                                                 'offline install.')
        download_parser.set_defaults(func=self.execute_download)
        download_parser.add_argument('args', help='Collection(s)', metavar='collection', nargs='*')
        download_parser.add_argument('-n', '--no-deps', dest='no_deps', action='store_true', default=False,
                                     help="Don't download collection(s) listed as dependencies.")
        download_parser.add_argument('-p', '--download-path', dest='download_path',
                                     default='./collections',
                                     help='The directory to download the collections to.')
        download_parser.add_argument('-r', '--requirements-file', dest='requirements',
                                     help='A file containing a list of collections to be downloaded.')
        download_parser.add_argument('--pre', dest='allow_pre_release', action='store_true',
                                     help='Include pre-release versions. Semantic versioning pre-releases are ignored by default')
    def add_init_options(self, parser, parents=None):