update actions

Author: admercs

.github/workflows/test_docs.yml

@@ -24,6 +24,7 @@ jobs:
       - name: "Build API reference documentation: Sphinx Immaterial"
         run: |
           echo "Current directory: $PWD"
+          ls -a
           python3 -m venv ./.env  # virtual env to avoid dependecy issues 
           source .env/bin/activate
           pip install sphinx sphinx-immaterial numpy msgpack-rpc-python