fallback to gateway address (#96)

Co-authored-by: Till Hoffmann <[email protected]>

Author: tuvshuud

testcontainers/core/container.py

@@ -93,6 +93,7 @@ def get_container_host_ip(self) -> str:
 
             if gateway_ip == host:
                 return self.get_docker_client().bridge_ip(self._container.id)
+            return gateway_ip
         return host
 
     def get_exposed_port(self, port) -> str: