set pythonpath too

Author: JacksonBurns

.github/workflows/CI.yml

@@ -103,7 +103,7 @@ jobs:
       - name: Set Environment Variables
         run: |
           RUNNER_CWD=$(pwd)
-          # echo "PYTHONPATH=$RUNNER_CWD/RMG-Py:$PYTHONPATH" >> $GITHUB_ENV
+          echo "PYTHONPATH=$RUNNER_CWD/RMG-Py:$PYTHONPATH" >> $GITHUB_ENV
           echo "$RUNNER_CWD/RMG-Py" >> $GITHUB_PATH
 
       # RMG build step