### 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._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:
                
                args.insert(1, '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.lazy_role_api = None
        super(GalaxyCLI, self).__init__(args)
    def init_parser(self):