Merge branch 'mb-cleanup-backfill-ci-queueing-tables' into 'master'

Cleanup back-filling CI queuing tables migration

See merge request gitlab-org/gitlab!81602

db/post_migrate/20220225133705_cleanup_backfill_ci_queuing_tables.rb

+# frozen_string_literal: true
+
+class CleanupBackfillCiQueuingTables < Gitlab::Database::Migration[1.0]
+  MIGRATION = 'BackfillCiQueuingTables'
+
+  disable_ddl_transaction!
+
+  def up
+    finalize_background_migration(MIGRATION)
+  end
+
+  def down
+    # no-op
+  end
+end

db/schema_migrations/20220225133705

+aa9ab05f6991f06c465fbc4878e0cbc648dc09b1b7912dbbf3dd68887a9cdd1d
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