Add keepAliveTimeoutSec config to edge imitator - fixed edge tests

application/src/test/java/org/thingsboard/server/edge/imitator/EdgeImitator.java

@@ -108,6 +108,7 @@ public class EdgeImitator {
         updateEdgeClientFields("rpcPort", port);
         updateEdgeClientFields("timeoutSecs", 3);
         updateEdgeClientFields("keepAliveTimeSec", 300);
+        updateEdgeClientFields("keepAliveTimeoutSec", 5);
         updateEdgeClientFields("maxInboundMessageSize", 4194304);
     }