Draft: Blog: Step-by-Step Migration Jenkins to GitLab

This blog goes over how to migrate from Jenkins CI over to GitLab. It covers key items such as the differences between the 2, considerations on migrating without interruption, steps to migration, examples, and more.

Closes #34683 (closed)

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  • Mentioned @sgittlen to give her a heads up ASAP
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• All relevant frontmatter included
• Review app checked for any formatting issues
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• Reviewer(s) marked approved before sending to blog team
  • Any required internal or external approval for this blog post has been granted (please leave a comment with details)
  • Reviews by Legal team if necessary according to SAFE guidelines
• Assign to @Sgittlen for final review

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