bump consul in tests (#375)

Author: mateusz.bartkowiak

envoy-control-tests/src/main/kotlin/pl/allegro/tech/servicemesh/envoycontrol/config/consul/ConsulContainer.kt

@@ -13,7 +13,7 @@ class ConsulContainer(
     val internalPort: Int = 8500
 ) : GenericContainer<ConsulContainer>(
     ImageFromDockerfile().withDockerfileFromBuilder {
-        it.from("consul:1.10.12")
+        it.from("consul:1.11.11")
             .run("apk", "add", "iproute2")
             .cmd(consulConfig.launchCommand())
             .expose(internalPort)