Test: raise test event-publisher wait timeout 200 -> 500

Change-Id: I2d69abb23477c76fa875c9bccb792776e6f25109

src/test/java/com/googlesource/gerrit/plugins/eventseiffel/TestEventPublisher.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/eventseiffel/TestEventPublisher.java b/src/test/java/com/googlesource/gerrit/plugins/eventseiffel/TestEventPublisher.java
index 33814dc..37e93f2 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/eventseiffel/TestEventPublisher.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/eventseiffel/TestEventPublisher.java
@@ -109,7 +109,7 @@
   /* Give the publisher-thread some time to handle events. */
   private void waitForIt() {
     try {
-      Thread.sleep(200);
+      Thread.sleep(500);
     } catch (InterruptedException e) {
       e.printStackTrace();
     }