### 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
dependencies, repository, documentation, homepage, issues, **kwargs):
    manifest = {
        'collection_info': {
            'namespace': namespace,
            'name': name,
            'version': version,
            'authors': authors,
            'readme': readme,
            'tags': tags,
            'description': description,
            'license': kwargs['license'],
            'license_file': license_file or None,  
            'dependencies': dependencies,
            'repository': repository,
            'documentation': documentation,
            'homepage': homepage,
            'issues': issues,
        },
        'file_manifest_file': {
            'name': 'FILES.json',
            'ftype': 'file',
            'chksum_type': 'sha256',
            'chksum_sha256': None,  
            'format': MANIFEST_FORMAT
        },
        'format': MANIFEST_FORMAT,
    }
    return manifest
def _build_collection_tar(