do not use directlink in labels

jsc_custom/spawner/spawner.py

@@ -41,7 +41,7 @@ async def extra_labels(spawner, user_options):
             str(os.environ.get("JUPYTERHUB_APP", "jupyterhub")),
         ),
     }
-    skip_options = ["name", "modules", "userdata_path"]
+    skip_options = ["name", "modules", "userdata_path", "repo2dockerdirectlink"]
     skip_options.extend(user_options.get("secret_keys", []))
     for param, value in spawner.user_options.items():
         if param in skip_options:
@@ -70,6 +70,7 @@ async def extra_labels(spawner, user_options):
     for key, value in labels.items():
         if len(value) > 63:
             labels[key] = value[:63]
+
     return labels