### 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
co.GlobalCLIArgs._Singleton__instance = None
    yield
    co.GlobalCLIArgs._Singleton__instance = None
@pytest.fixture()
def collection_artifact(request, tmp_path_factory):
    test_dir = to_text(tmp_path_factory.mktemp('test-ÅÑŚÌβŁÈ Collections Input'))
    namespace = 'ansible_namespace'
    collection = 'collection'
    skeleton_path = os.path.join(os.path.dirname(os.path.split(__file__)[0]), 'cli', 'test_data', 'collection_skeleton')
    collection_path = os.path.join(test_dir, namespace, collection)
    call_galaxy_cli(['init', '%s.%s' % (namespace, collection), '-c', '--init-path', test_dir,
                     '--collection-skeleton', skeleton_path])
    dependencies = getattr(request, 'param', {})
    galaxy_yml = os.path.join(collection_path, 'galaxy.yml')
    with open(galaxy_yml, 'rb+') as galaxy_obj:
        existing_yaml = yaml.safe_load(galaxy_obj)
        existing_yaml['dependencies'] = dependencies
        galaxy_obj.seek(0)
        galaxy_obj.write(to_bytes(yaml.safe_dump(existing_yaml)))
        galaxy_obj.truncate()
    # Create a file with +x in the collection so we can test the permissions
    execute_path = os.path.join(collection_path, 'runme.sh')
    with open(execute_path, mode='wb') as fd:
        fd.write(b"echo hi")
    os.chmod(execute_path, os.stat(execute_path).st_mode | stat.S_IEXEC)
    call_galaxy_cli(['build', collection_path, '--output-path', test_dir])
    collection_tar = os.path.join(test_dir, '%s-%s-0.1.0.tar.gz' % (namespace, collection))
    return to_bytes(collection_path), to_bytes(collection_tar)
@pytest.fixture()
def galaxy_server():