Fix python 3 compatibility for network id lookup (#45467)

Due to a change in python 3 filters return filter instead of list. This breaks the network name to id lookup for the docker_swarm_module. By wrapping it in list it ensures it is a list when returned and the id is extracted.

lib/ansible/modules/cloud/docker/docker_swarm_service.py

@@ -838,7 +838,7 @@ class DockerService(DockerBaseClass):
         for network_name in self.networks:
             network_id = None
             try:
-                network_id = filter(lambda n: n['name'] == network_name, docker_networks)[0]['id']
+                network_id = list(filter(lambda n: n['name'] == network_name, docker_networks))[0]['id']
             except:
                 pass
             if network_id: