Fix phpcs test again and require it to pass so that it doesn't break again

This MR additionally updates the GitLab CI template to the latest version (removes the giant Drupal logo, etc.; only cosmetic changes).

I have applied the patch cleanly, and the above errors are resolved.
Please check the Screenshots for the same.

@nilesh.addweb Thanks for testing.

In the future, for GitLab CI issues, you can see the results of applying the MR by clicking the checkmark icon next to the MR, which will show you the pipelines, including the phpcs test.

Coding standards were updated today, so I updated the MR to incorporate those changes.

This module has some PHP 8.4 deprecations, which are already addressed in the MR, so I'm changing the title because PHP 8.4 has now been released.

Bumping to major because this can block sites on PHP 8.4.