### 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
str_path = path.as_posix() if isinstance(path, pathlib.Path) else path
    return pathlib.Path(
        
        os.path.expandvars(str_path)
    ).expanduser().absolute()
def find_existing_collections(path_filter, artifacts_manager, namespace_filter=None, collection_filter=None, dedupe=True):
    """Locate all collections under a given path.
    :param path: Collection dirs layout search path.
    :param artifacts_manager: Artifacts manager.
    """
    if files is None:
        raise AnsibleError('importlib_resources is not installed and is required')
    if path_filter and not is_sequence(path_filter):
        path_filter = [path_filter]
    paths = set()
    for path in files('ansible_collections').glob('*/*/'):
        path = _normalize_collection_path(path)
        if not path.is_dir():
            continue
        if path_filter:
            for pf in path_filter:
                try:
                    path.relative_to(_normalize_collection_path(pf))
                except ValueError:
                    continue
                break
            else:
                continue
        paths.add(path)