fixes event patching

Author: yue9944882

extended/src/main/java/io/kubernetes/client/extended/event/legacy/EventLogger.java

@@ -43,7 +43,7 @@ public MutablePair<CoreV1Event, V1Patch> observe(CoreV1Event event, String key)
       patch =
           new V1Patch(
               String.format(
-                  "{\"message\":\"%s\",\"count\":\"%d\",\"lastTimestamp\":%s}",
+                  "{\"message\":\"%s\",\"count\":%d,\"lastTimestamp\":\"%s\"}",
                   event.getMessage(),
                   event.getCount(),
                   Configuration.getDefaultApiClient().getJSON().serialize(now)));