Add more test cases ci config testing

What does this MR do and why?

• Add the following test cases to CI configuration test:

1. Branch pipelines:

• Scheduled ruby3_2 branch scheduled pipeline
• Stable branch pipeline
• GitLab.com gitlab-org/security/gitlab
  • Default Master Pipeline
  • Scheduled pipeline - Nightly
  • Auto-deploy branch pipeline

2. MR pipelines:

• Unlabeled MR targeting stable branch Changing app/model/user.rb

• MR Labeled with pipeline:force-run-as-if-jh Changing app/models/user.rb

• MR Labeled with pipeline:run-as-if-jh and pipeline:mr-approved Changing app/models/user.rb

• MR Labeled with pipeline:run-in-ruby3_2 Changing app/models/user.rb

• Some minor refactoring and removal of comments.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

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Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.