### 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
ModifiedContent(filename=path, expected='the directory does not exist', installed='the directory exists')
                )
    if modified_content:
        result.success = False
        display.display(
            'Collection {fqcn!s} contains modified content '
            'in the following files:'.
            format(fqcn=to_text(local_collection.fqcn)),
        )
        for content_change in modified_content:
            display.display('    %s' % content_change.filename)
            display.v("    Expected: %s\n    Found: %s" % (content_change.expected, content_change.installed))
    else:
        what = "are internally consistent with its manifest" if verify_local_only else "match the remote collection"
        display.display(
            "Successfully verified that checksums for '{coll!s}' {what!s}.".
            format(coll=local_collection, what=what),
        )
    return result
def verify_file_signatures(fqcn, manifest_file, detached_signatures, keyring, required_successful_count, ignore_signature_errors):
    
    successful = 0
    error_messages = []
    signature_count_requirements = re.match(SIGNATURE_COUNT_RE, required_successful_count).groupdict()
    strict = signature_count_requirements['strict'] or False
    require_all = signature_count_requirements['all']
    require_count = signature_count_requirements['count']
    if require_count is not None:
        require_count = int(require_count)
    for signature in detached_signatures: