### 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
failed_verify = False
    coll_path_parts = to_text(manifest_file, errors='surrogate_or_strict').split(os.path.sep)
    collection_name = '%s.%s' % (coll_path_parts[-3], coll_path_parts[-2])  
    if not verify_file_signatures(collection_name, manifest_file, signatures, keyring, required_signature_count, ignore_signature_errors):
        raise AnsibleError(f"Not installing {collection_name} because GnuPG signature verification failed.")
    display.vvvv(f"GnuPG signature verification succeeded for {collection_name}")
def install_artifact(b_coll_targz_path, b_collection_path, b_temp_path, signatures, keyring, required_signature_count, ignore_signature_errors):
    """Install a collection from tarball under a given path.
    :param b_coll_targz_path: Collection tarball to be installed.
    :param b_collection_path: Collection dirs layout path.
    :param b_temp_path: Temporary dir path.
    :param signatures: frozenset of signatures to verify the MANIFEST.json
    :param keyring: The keyring used during GPG verification
    :param required_signature_count: The number of signatures that must successfully verify the collection
    :param ignore_signature_errors: GPG errors to ignore during signature verification
    """
    try:
        with tarfile.open(b_coll_targz_path, mode='r') as collection_tar: