* provisioning: detect stale sync status and trigger resync
When sync jobs expire and are cleaned up by the expired job cleanup
controller, the Repository sync status remains stuck in Pending or
Working state. This prevents new sync jobs from being queued because
shouldResync() blocks on these states.
This change adds detection logic in shouldResync() to check if a sync
job referenced in the sync status still exists. If the job doesn't exist
(NotFound), we trigger a resync to reconcile the stale state.
Fixesgrafana/git-ui-sync-project#626
* test: remove unused mocks and fix test case
- Remove unused mockRepositoryLister and mockRepositoryNamespaceLister types
- Remove unused imports (labels, listers)
- Remove test case for sync disabled scenario as we don't care about sync enabled state when detecting stale status