k8s: use our internal get_pod fn

Author: mplsgrant

src/warnet/k8s.py

@@ -87,8 +87,7 @@ def get_mission(mission: str) -> list[V1Pod]:
 
 def get_pod_exit_status(pod_name):
     try:
-        sclient = get_static_client()
-        pod = sclient.read_namespaced_pod(name=pod_name, namespace=get_default_namespace())
+        pod = get_pod(pod_name)
         for container_status in pod.status.container_statuses:
             if container_status.state.terminated:
                 return container_status.state.terminated.exit_code