CI changes due to migration of about.gitlab.com to Cloudflare

Why is this change being made?

These changes are required as part of migrating away from Fastly. With these changes, anytime there are changes to the redirects.yml or the worker code, a new production worker will be deployed.

CR: gitlab-com/gl-infra/production#15880 (closed)
Issue: https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/18945

Author Checklist

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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  • The when to get approval handbook section explains the workflow in more detail
• If the changes affect team members, or warrant an announcement in another way, please consider posting an update in #whats-happening-at-gitlab linking to this MR
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