fix job declaration

Author: Jiloc

.github/workflows/stacks-core-tests.yml

@@ -74,7 +74,11 @@ jobs:
   ## Generate and upload node configuration documentation
   node-config-docsgen:
     name: Node Configuration Documentation
-    uses: stacks-network/actions/stacks-core/node-config-docsgen@feat/node-config-docsgen
+    runs-on: ubuntu-latest
+    steps:
+      - name: Generate Node Configuration Documentation
+        id: node_config_docsgen
+        uses: stacks-network/actions/stacks-core/node-config-docsgen@feat/node-config-docsgen
 
   ## Disabled
   ##   - this test can take several hours to run