### Summary

Ansible devel sanity tests failing with error: packaging Python module unavailable; unable to validate the collection

### Issue Type

Bug Report

### Component Name

ansible sanity tests

### Ansible Version

```console
$ ansible devel
```


### Configuration

```console
$ ansible-config dump --only-changed
```


### OS / Environment

mac os

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)

```
Ansible devel sanity tests is failing with `stderr: [WARNING]: packaging Python module unavailable; unable to validate collection`. Plz ref the below test failures:
[ansible-test-sanity-docker-devel](https://dashboard.zuul.ansible.com/t/ansible/build/ffc5d7c618a740bf9c783e15c2d14806)
[network-ee-sanity-tests](https://dashboard.zuul.ansible.com/t/ansible/build/b4ab02b51d76487b97356f3c6ffe76fe)

### Expected Results

Ansible sanity tests run without failure for `devel`

### Actual Results

```console
Ansible sanity tests fail for `devel`
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
return 'PluginLoader(type={0})'.format(AnsibleCollectionRef.legacy_plugin_dir_to_plugin_type(self.subdir))
    def _clear_caches(self):
        if C.OLD_PLUGIN_CACHE_CLEARING:
            self._paths = None
        else:
            
            MODULE_CACHE[self.class_name] = {}
            PATH_CACHE[self.class_name] = None
            PLUGIN_PATH_CACHE[self.class_name] = defaultdict(dict)
            
            self._module_cache = MODULE_CACHE[self.class_name]
            self._paths = PATH_CACHE[self.class_name]
            self._plugin_path_cache = PLUGIN_PATH_CACHE[self.class_name]
            self._searched_paths = set()
    def __setstate__(self, data):
        '''
        Deserializer.
        '''
        class_name = data.get('class_name')
        package = data.get('package')
        config = data.get('config')
        subdir = data.get('subdir')
        aliases = data.get('aliases')
        base_class = data.get('base_class')
        PATH_CACHE[class_name] = data.get('PATH_CACHE')
        PLUGIN_PATH_CACHE[class_name] = data.get('PLUGIN_PATH_CACHE')
        self.__init__(class_name, package, config, subdir, aliases, base_class)
        self._extra_dirs = data.get('_extra_dirs', [])
        self._searched_paths = data.get('_searched_paths', set())
    def __getstate__(self):