### Summary

With 22.04 right around the corner I've been testing some ansible on it to prepare for deploying 22.04 hosts. I've got everything worked out except for adding PPAs.

`apt_repository` is still adding the PPA keys to `/etc/apt/trusted.gpg` instead of placing individual key files in `/etc/apt/trusted.gpg.d/`.

`apt-add-repository` puts the individual key files in `/etc/apt/trusted.gpg.d`.

This move has been ongoing for many years with the previous behavior being deprecated and generating warnings.

### Issue Type

Bug Report

### Component Name

apt_repository

### Ansible Version

```console
$ ansible --version
ansible 2.10.8
  config file = None
  configured module search path = ['/home/wonko/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.10.4 (main, Apr  2 2022, 09:04:19) [GCC 11.2.0]
```


### Configuration

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


### OS / Environment

Ubuntu 22.04 (beta)

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)
    - name: Add PPA
      apt_repository:
        repo: ppa:git-core/ppa
        state: present
```


### Expected Results

PPA is added to `/etc/apt/sources.list.d` and gpg key file to be place in `/etc/apt/trusted.gpg.d`

### Actual Results

```console
W: http://ppa.launchpad.net/git-core/ppa/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
rc, out, err = self.module.run_command('apt-key export %s' % key_fingerprint, check_rc=True)
        return len(err) == 0
    def add_source(self, line, comment='', file=None):
        if line.startswith('ppa:'):
            source, ppa_owner, ppa_name = self._expand_ppa(line)
            if source in self.repos_urls:
                
                return
            if self.add_ppa_signing_keys_callback is not None:
                info = self._get_ppa_info(ppa_owner, ppa_name)
                if not self._key_already_exists(info['signing_key_fingerprint']):
                    command = ['apt-key', 'adv', '--recv-keys', '--no-tty', '--keyserver', 'hkp://keyserver.ubuntu.com:80', info['signing_key_fingerprint']]
                    self.add_ppa_signing_keys_callback(command)
            file = file or self._suggest_filename('%s_%s' % (line, self.codename))
        else:
            source = self._parse(line, raise_if_invalid_or_disabled=True)[2]
            file = file or self._suggest_filename(source)
        self._add_valid_source(source, comment, file)
    def remove_source(self, line):
        if line.startswith('ppa:'):
            source = self._expand_ppa(line)[0]
        else:
            source = self._parse(line, raise_if_invalid_or_disabled=True)[2]
        self._remove_valid_source(source)
    @property
    def repos_urls(self):