### 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
try:
            source_full = self._loader.get_real_file(source_full, decrypt=decrypt)
        except AnsibleFileNotFound as e:
            result['failed'] = True
            result['msg'] = "could not find src=%s, %s" % (source_full, to_text(e))
            return result
        
        
        lmode = None
        if self._task.args.get('mode', None) == 'preserve':
            lmode = '0%03o' % stat.S_IMODE(os.stat(source_full).st_mode)
        
        
        
        if self._connection._shell.path_has_trailing_slash(dest):
            dest_file = self._connection._shell.join_path(dest, source_rel)
        else:
            dest_file = dest
        
        dest_status = self._execute_remote_stat(dest_file, all_vars=task_vars, follow=follow, checksum=force)
        if dest_status['exists'] and dest_status['isdir']:
            
            if content is not None:
                
                self._remove_tempfile_if_content_defined(content, content_tempfile)
                result['failed'] = True
                result['msg'] = "can not use content with a dir as dest"
                return result
            else: