Avoid infinite loop waiting for Tool deployment (#776)

Break out of the wait loop if the deployment status is anything other than
TOOL_DEPLOYING - this may result in some deployments being reported as failed
incorrectly, but should avoid the consumer getting stuck.

controlpanel/frontend/consumers.py

@@ -200,10 +200,10 @@ def start_background_task(task, message):
     )
 
 def wait_for_deployment(deployment, id_token):
-    while True:
+    status = TOOL_DEPLOYING
+    while status == TOOL_DEPLOYING:
         status = deployment.get_status(id_token)
         update_tool_status(deployment.user, deployment.tool, status)
-        if status in (TOOL_DEPLOY_FAILED, TOOL_READY, TOOL_IDLED):
-            return status
         sleep(1)
+    return status