ServicePing report generation for gitlab.com instance performace has
suddenly decreased over last week. After investigation it appears
that one of specialized indexes that supported heavy query included in
the report is marked as invalid. Following PostgreSQL documentation
advice to recreate index in such case.
At https://gitlab.com/gitlab-org/gitlab/-/merge_requests/71712
broken index was renamed as broken and new one was scheduled
to be re created. This commit adds migration with synchronouse index
creation for self-managed instances.

Changelog: performance