Do not stop let scheduler-listener notification throw Error

Author: kagkarlsson

db-scheduler/src/main/java/com/github/kagkarlsson/scheduler/event/SchedulerListeners.java

@@ -107,7 +107,7 @@ public void onCandidateEvent(CandidateEventType type) {
   public void fireAndLogErrors(SchedulerListener listener, String method, Runnable r) {
     try {
       r.run();
-    } catch (RuntimeException e) {
+    } catch (Throwable e) {
       LOG.warn(
           "Listener '{}' method '{}' threw an unexpected Exception",
           listener.getClass().getName(),