Annotations: Prevent orphaned annotation tags cleanup when no annotations were cleaned (#33957)

Fixes #33948

Co-authored-by: Anatoly Fayngelerin <afayngelerin@dropbox.com>

pkg/services/sqlstore/annotation_cleanup.go

@@ -47,8 +47,9 @@ func (acs *AnnotationCleanupService) CleanAnnotations(ctx context.Context, cfg *
 	if err != nil {
 		return totalCleanedAnnotations, 0, err
 	}
-
-	affected, err = acs.cleanOrphanedAnnotationTags(ctx)
+	if totalCleanedAnnotations > 0 {
+		affected, err = acs.cleanOrphanedAnnotationTags(ctx)
+	}
 	return totalCleanedAnnotations, affected, err
 }