refactor(reana-admin): harmonise user-uuid runtime pod label (#754)

Closes reanahub/reana-workflow-controller#664

Author: CameronMcClymont

reana_server/reana_admin/cli.py

@@ -1074,7 +1074,7 @@ def interactive_session_cleanup(
         try:
             pod_name = pod.metadata.name
             workflow_id = pod.metadata.labels["reana-run-session-workflow-uuid"]
-            user_id = pod.metadata.labels["reana-run-session-owner-uuid"]
+            user_id = pod.metadata.labels["user-uuid"]
             container_args = pod.spec.containers[0].args
             # find `--NotebookApp.token` session container argument and parse the user token value from it
             token = next(filter(lambda a: "token" in a, container_args)).split("'")[1]

tests/test_cli.py

@@ -570,7 +570,7 @@ def test_interactive_session_cleanup(
         "app": mock_session_pod.metadata.name,
         "reana_workflow_mode": "session",
         "reana-run-session-workflow-uuid": str(sample_serial_workflow_in_db.id_),
-        "reana-run-session-owner-uuid": str(sample_serial_workflow_in_db.owner_id),
+        "user-uuid": str(sample_serial_workflow_in_db.owner_id),
     }
     mock_pod_list = Mock()
     mock_pod_list.items = [mock_session_pod]