Create routing table for ci_builds

What does this MR do and why?

Describe in detail what your merge request does and why.

This reintroduces !115485 (merged) which was reverted because it failed to get the necessary locks at that time. This will be a no-op in production.

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MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.

Related to #382033 (closed)