test: make cluster tests more time tolerant

test/simple/test-cluster-master-error.js

@@ -114,7 +114,7 @@ if (cluster.isWorker) {
     existMaster = !!code;
 
     // Give the workers time to shut down
-    setTimeout(checkWorkers, 200);
+    setTimeout(checkWorkers, 1000);
 
     function checkWorkers() {
       // When master is dead all workers should be dead to

test/simple/test-cluster-master-kill.js

@@ -82,7 +82,7 @@ if (cluster.isWorker) {
     // check worker process status
     setTimeout(function() {
       alive = isAlive(pid);
-    }, 200);
+    }, 1000);
   });
 
   process.once('exit', function() {