Ensure id uniquness across p_ci_builds partitions - 2nd attempt

What does this MR do and why?

Ensure id uniquness across p_ci_builds partitions

This retries the migration introduced by a previous merge request because it was skipped due to autovacuum wraparound prevention running on ci_builds.

Original MR: !125002 (merged) and logs: https://log.gprd.gitlab.net/app/r/s/cHelD

Changelog: other

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Related to #394704 (closed)