feat(services.yml): Add ability to adjust cors and other services

[sylus]

Hey @zachomedia does this look good?

[zachomedia]

@sylus We'll need a volume mount for it as well in the different containers (deployment, jobs and cronjobs).

Like https://github.com/drupalwxt/helm-drupal/blob/master/drupal/templates/deploy/drupal.yaml#L172