### 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
with_deps=not no_deps,
        with_pre_releases=allow_pre_release,
        upgrade=upgrade,
        include_signatures=include_signatures,
        offline=offline,
    )
    try:
        return collection_dep_resolver.resolve(
            requested_requirements,
            max_rounds=2000000,  
        ).mapping
    except CollectionDependencyResolutionImpossible as dep_exc:
        conflict_causes = (
            '* {req.fqcn!s}:{req.ver!s} ({dep_origin!s})'.format(
                req=req_inf.requirement,
                dep_origin='direct request'
                if req_inf.parent is None
                else 'dependency of {parent!s}'.
                format(parent=req_inf.parent),
            )
            for req_inf in dep_exc.causes
        )
        error_msg_lines = list(chain(
            (
                'Failed to resolve the requested '
                'dependencies map. Could not satisfy the following '
                'requirements:',
            ),
            conflict_causes,
        ))