feat(consts): add TIMING_OUT Actor event (#579)

This PR adds a new Actor event name `TIMING_OUT` (or `timingOut`, sadly,
the 1:1 mapping was lost more than 7 years ago
7623023).

This is required for us to implement the event in `apify-worker`. See
apify/apify-worker#546 for more information.

Author: jirimoravcik

packages/consts/src/consts.ts

@@ -22,6 +22,7 @@ export const ACTOR_EVENT_NAMES = {
     MIGRATING: 'migrating',
     PERSIST_STATE: 'persistState',
     ABORTING: 'aborting',
+    TIMING_OUT: 'timingOut',
 } as const;
 
 /**