Update action.yml

Author: mcbarton

.github/actions/Emscripten-Notebook-Tests/action.yml

@@ -18,8 +18,6 @@ runs:
       shell: bash -l {0}
       run: |
         set -e
-        echo "Processes on port 8000:"
-        lsof -nP -i:8000 || echo "None"
         micromamba create -n xeus-lite-host jupyterlite-core=0.6 jupyterlite-xeus -c conda-forge -y
         micromamba activate xeus-lite-host
         if [[ "${{ matrix.os }}" == "macos"* ]]; then
@@ -83,7 +81,5 @@ runs:
         # Kill the jupyter lite serve process now we are done running xeus-cpp in the
         # Jupyter Lite website.
         kill -9 $jupyter_lite_process_id
-        
-        pkill -f "jupyter|jupyter-lite" || :
-        PID=$(lsof -t -i:8000 || :) && [ -n "$PID" ] && kill -9 $PID || :
+        lsof -nP [email protected] -sTCP:LISTEN | awk 'NR>1 {print $2}' | uniq | xargs -r kill -9 || :