Update update_pypi.yml

.github/workflows/update_pypi.yml

@@ -22,15 +22,8 @@ jobs:
         pip install flit
     - name: Install package dependencies
       run: |
+        cd python
         pip install -e .
-    - name: Set PYTHONPATH
-      run: echo "PYTHONPATH=$PYTHONPATH:${{ github.workspace }}/src" >> $GITHUB_ENV
-    - name: Debug information
-      run: |
-        pwd
-        ls -R
-        echo $PYTHONPATH
-        pip list
     - name: Build package
       run: flit build
     - name: Publish package distributions to PyPI