### 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
context.CLIARGS._store = {'ignore_certs': False}
    galaxy_api = api.GalaxyAPI(None, 'test_server', 'https://galaxy.ansible.com')
    galaxy_api.get_collection_signatures = MagicMock(return_value=[])
    return galaxy_api
def test_concrete_artifact_manager_scm_no_executable(monkeypatch):
    url = 'https://github.com/org/repo'
    version = 'commitish'
    mock_subprocess_check_call = MagicMock()
    monkeypatch.setattr(collection.concrete_artifact_manager.subprocess, 'check_call', mock_subprocess_check_call)
    mock_mkdtemp = MagicMock(return_value='')
    monkeypatch.setattr(collection.concrete_artifact_manager, 'mkdtemp', mock_mkdtemp)
    mock_get_bin_path = MagicMock(side_effect=[ValueError('Failed to find required executable')])
    monkeypatch.setattr(collection.concrete_artifact_manager, 'get_bin_path', mock_get_bin_path)
    error = re.escape(
        "Could not find git executable to extract the collection from the Git repository `https://github.com/org/repo`"
    )
    with pytest.raises(AnsibleError, match=error):
        collection.concrete_artifact_manager._extract_collection_from_git(url, version, b'path')
@pytest.mark.parametrize(
    'url,version,trailing_slash',
    [
        ('https://github.com/org/repo', 'commitish', False),
        ('https://github.com/org/repo,commitish', None, False),
        ('https://github.com/org/repo/,commitish', None, True),
        ('https://github.com/org/repo#,commitish', None, False),
    ]
)
def test_concrete_artifact_manager_scm_cmd(url, version, trailing_slash, monkeypatch):