### Summary

The documentation on https://docs.ansible.com/ansible/latest/collections/ansible/builtin/unarchive_module.html states that the module fully supports check-mode.
But the fact is that check-mode is not supported when it concerns a gzipped tar file cfr. https://github.com/ansible/ansible-modules-core/blob/00911a75ad6635834b6d28eef41f197b2f73c381/files/unarchive.py#L591
I was mislead by the '_fully_ supported' and noticed that the step was skipped in check-mode.
Wouldn't it make sense to adapt the documentation accordingly ?


### Issue Type

Documentation Report

### Component Name

https://github.com/ansible/ansible-modules-core/blob/00911a75ad6635834b6d28eef41f197b2f73c381/files/unarchive.py

### Ansible Version

```console
$ ansible --version
ansible [core 2.12.6]
  config file = ansible.cfg
  configured module search path = ['/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.9/dist-packages/ansible
  ansible collection location = /home/<user>/.ansible
  executable location = /usr/local/bin/ansible
  python version = 3.9.2 (default, Feb 28 2021, 17:03:44) [GCC 10.2.1 20210110]
  jinja version = 2.11.3
  libyaml = True
```


### Configuration

```console
# if using a version older than ansible-core 2.12 you should omit the '-t all'
$ ansible-config dump --only-changed -t all
```


### OS / Environment

Debian 11

### Additional Information

When the documentation is adapted, it is clear for everyone that unarchiving gzipped tar files is not check_mode compatible.

### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
cmd = [self.cmd_path, '-o']
        if self.opts:
            cmd.extend(self.opts)
        cmd.append(self.src)
        
        
        
        
        if self.excludes:
            cmd.extend(['-x'] + self.excludes)
        if self.include_files:
            cmd.extend(self.include_files)
        cmd.extend(['-d', self.b_dest])
        rc, out, err = self.module.run_command(cmd)
        return dict(cmd=cmd, rc=rc, out=out, err=err)
    def can_handle_archive(self):
        missing = []
        for b in self.binaries:
            try:
                setattr(self, b[1], get_bin_path(b[0]))
            except ValueError:
                missing.append(b[0])
        if missing:
            return False, "Unable to find required '{missing}' binary in the path.".format(missing="' or '".join(missing))
        cmd = [self.cmd_path, '-l', self.src]
        rc, out, err = self.module.run_command(cmd)
        if rc == 0:
            return True, None
        return False, 'Command "%s" could not handle archive: %s' % (self.cmd_path, err)
class TgzArchive(object):