Fix "Dashboard shows deleted comments" (#1995)

models/migrations/migrations.go

@@ -118,6 +118,8 @@ var migrations = []Migration{
 	NewMigration("remove columns from action", removeActionColumns),
 	// v34 -> v35
 	NewMigration("give all units to owner teams", giveAllUnitsToOwnerTeams),
+	// v35 -> v36
+	NewMigration("adds comment to an action", addCommentIDToAction),
 }
 
 // Migrate database to current version