releasing casc: add authentication/authorization config
Add the authentication/authorization settings from the releasing production instance to the CasC configuration
Bug: T323909
How to register an account on GitLab. To prevent spam, new accounts are locked until approved by an admin or the approver bot. You can also file an unlock request to expedite access.
Support: mw:GitLab, how to host a project on GitLab, #wikimedia-gitlab on libera.chat, #GitLab on Phabricator.
Add the authentication/authorization settings from the releasing production instance to the CasC configuration
Bug: T323909