Revert "monitoring: remove repo-updater: syncer_synced_repos (#24678)"
Created by: ryanslade
This reverts commit c19529bbd64bd48e6e7b2f5bea535b692bcf59f4.
The panel was removed based on an old thread that wasn't aware the metric had been fixed.
Created by: ryanslade
This reverts commit c19529bbd64bd48e6e7b2f5bea535b692bcf59f4.
The panel was removed based on an old thread that wasn't aware the metric had been fixed.