### Summary

I should be able to manage the `/etc/ansible/ansible.cfg` file on my ansible control host with ansible.  So, when I try this:
```
- name: Install ansible hosts and ansible.cfg
  copy:
    src: "{{ file_directory }}/etc/ansible/{{ item.file }}"
    dest: '/etc/ansible/{{ item.file }}'
    owner: root
    group: root
    mode: '0644'
    backup: yes
    force: yes
    validate: "{{ item.validate }}"
  loop:
  - file: hosts
    validate: /bin/ansible-inventory --list --inventory %s
  - file: ansible.cfg
    validate: /bin/ansible-config list -c %s
```
the validation fails because the file indicated by %s does not have a .cfg extension.

### Issue Type

Bug Report

### Component Name

copy

### Ansible Version

```console
$ ansible --version
ansible [core 2.14.10]
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/steve/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.11/site-packages/ansible
  ansible collection location = /home/steve/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.11.5 (main, Aug 28 2023, 00:00:00) [GCC 13.2.1 20230728 (Red Hat 13.2.1-1)] (/usr/bin/python3)
  jinja version = 3.0.3
  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
CONFIG_FILE() = /etc/ansible/ansible.cfg
```


### OS / Environment

Fedora 38 

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)
- name: Install ansible hosts and ansible.cfg
  copy:
    src: "{{ file_directory }}/etc/ansible/{{ item.file }}"
    dest: '/etc/ansible/{{ item.file }}'
    owner: root
    group: root
    mode: '0644'
    backup: yes
    force: yes
    validate: "{{ item.validate }}"
  loop:
  - file: hosts
    validate: /bin/ansible-inventory --list --inventory %s
  - file: ansible.cfg
    validate: /bin/ansible-config list -c %s
```


### Expected Results

I expected ansible-config to behave similarly to ansible-inventory, or, failing that to (a) have a different return code for the file extension "error" (not 5) and to test the content before the extension.

### Actual Results

```console
[steve@jabberwock ~]$ ansible-playbook -i shared/ansible/server_IaC/files/arthur/etc/ansible/hosts temp.yml

PLAY [arthur] ****************************************************************************************************************************

TASK [Install ansible hosts and ansible.cfg] *********************************************************************************************
ok: [arthur] => (item={'file': 'hosts', 'validate': '/bin/ansible-inventory --list --inventory %s'})
failed: [arthur] (item={'file': 'ansible.cfg', 'validate': '/bin/ansible-config list -c %s'}) => {"ansible_loop_var": "item", "changed": false, "checksum": "d17e17e9639b5df25890b6ecbab867b9e329f40f", "exit_status": 5, "item": {"file": "ansible.cfg", "validate": "/bin/ansible-config list -c %s"}, "msg": "failed to validate", "stderr": "ERROR! Unsupported configuration file extension for /home/ansible/.ansible/tmp/ansible-tmp-1699292001.685196-111356-55146881241278/source: \n", "stderr_lines": ["ERROR! Unsupported configuration file extension for /home/ansible/.ansible/tmp/ansible-tmp-1699292001.685196-111356-55146881241278/source: "], "stdout": "usage: ansible-config [-h] [--version] [-v] {list,dump,view,init} ...\n\nView ansible configuration.\n\npositional arguments:\n  {list,dump,view,init}\n    list                Print all config options\n    dump                Dump configuration\n    view                View configuration file\n    init                Create initial configuration\n\noptions:\n  --version             show program's version number, config file location,\n                        configured module search path, module location,\n                        executable location and exit\n  -h, --help            show this help message and exit\n  -v, --verbose         Causes Ansible to print more debug messages. Adding\n                        multiple -v will increase the verbosity, the builtin\n                        plugins currently evaluate up to -vvvvvv. A reasonable\n                        level to start is -vvv, connection debugging might\n                        require -vvvv.\n", "stdout_lines": ["usage: ansible-config [-h] [--version] [-v] {list,dump,view,init} ...", "", "View ansible configuration.", "", "positional arguments:", "  {list,dump,view,init}", "    list                Print all config options", "    dump                Dump configuration", "    view                View configuration file", "    init                Create initial configuration", "", "options:", "  --version             show program's version number, config file location,", "                        configured module search path, module location,", "                        executable location and exit", "  -h, --help            show this help message and exit", "  -v, --verbose         Causes Ansible to print more debug messages. Adding", "                        multiple -v will increase the verbosity, the builtin", "                        plugins currently evaluate up to -vvvvvv. A reasonable", "                        level to start is -vvv, connection debugging might", "                        require -vvvv."]}

PLAY RECAP *******************************************************************************************************************************
arthur                     : ok=0    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
"""remove action plugin only keys"""
    return dict((k, v) for k, v in module_args.items() if k not in ('content', 'decrypt'))
def _walk_dirs(topdir, base_path=None, local_follow=False, trailing_slash_detector=None):
    """
    Walk a filesystem tree returning enough information to copy the files
    :arg topdir: The directory that the filesystem tree is rooted at
    :kwarg base_path: The initial directory structure to strip off of the
        files for the destination directory.  If this is None (the default),
        the base_path is set to ``top_dir``.
    :kwarg local_follow: Whether to follow symlinks on the source.  When set
        to False, no symlinks are dereferenced.  When set to True (the
        default), the code will dereference most symlinks.  However, symlinks
        can still be present if needed to break a circular link.
    :kwarg trailing_slash_detector: Function to determine if a path has
        a trailing directory separator. Only needed when dealing with paths on
        a remote machine (in which case, pass in a function that is aware of the
        directory separator conventions on the remote machine).
    :returns: dictionary of tuples.  All of the path elements in the structure are text strings.
            This separates all the files, directories, and symlinks along with
            important information about each::
                { 'files': [('/absolute/path/to/copy/from', 'relative/path/to/copy/to'), ...],
                  'directories': [('/absolute/path/to/copy/from', 'relative/path/to/copy/to'), ...],
                  'symlinks': [('/symlink/target/path', 'relative/path/to/copy/to'), ...],
                }
        The ``symlinks`` field is only populated if ``local_follow`` is set to False
        *or* a circular symlink cannot be dereferenced.
    """
    
    r_files = {'files': [], 'directories': [], 'symlinks': []}
    def _recurse(topdir, rel_offset, parent_dirs, rel_base=u''):