Merge branch '458479-ci-build-trace-metadata-sharding-backfills' into 'master'

Backfill for Sharding Key on CI::BuildTraceMetadata

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/174780



Merged-by: Pedro Pombeiro <noreply@pedro.pombei.ro>
Approved-by: Pedro Pombeiro <noreply@pedro.pombei.ro>
Approved-by: Irina Bronipolsky <ibronipolsky@gitlab.com>
Approved-by: Dylan Griffith <dyl.griffith@gmail.com>
Reviewed-by: Pedro Pombeiro <noreply@pedro.pombei.ro>
Reviewed-by: Irina Bronipolsky <ibronipolsky@gitlab.com>
Co-authored-by: Vlad Wolanyk <vwolanyk@gitlab.com>