Fix BROADCAST_WEBSOCKET_PORT for Kube dev (#13243)

- `settings/minikube.py` gets imported conditionally, when the
  environment variable `AWX_KUBE_DEVEL` is set. In this imported file,
  we set `BROADCAST_WEBSOCKET_PORT = 8013`, but 8013 is only used in the
  docker-compose dev environment. In Kubernetes environments, 8052 is
  used for everything. This is hardcoded awx-operator's ConfigMap.

- Also rename `minikube.py` because it is used for every kind of
  development Kube environment, including Kind.

Signed-off-by: Rick Elrod <rick@elrod.me>

awx/settings/development.py

@@ -114,7 +114,7 @@ if 'sqlite3' not in DATABASES['default']['ENGINE']:  # noqa
 # this needs to stay at the bottom of this file
 try:
     if os.getenv('AWX_KUBE_DEVEL', False):
-        include(optional('minikube.py'), scope=locals())
+        include(optional('development_kube.py'), scope=locals())
     else:
         include(optional('local_*.py'), scope=locals())
 except ImportError:

awx/settings/development_kube.py

@@ -1,4 +1,4 @@
 BROADCAST_WEBSOCKET_SECRET = '🤖starscream🤖'
-BROADCAST_WEBSOCKET_PORT = 8013
+BROADCAST_WEBSOCKET_PORT = 8052
 BROADCAST_WEBSOCKET_VERIFY_CERT = False
 BROADCAST_WEBSOCKET_PROTOCOL = 'http'