Trying alternate approach to pip update

Signed-off-by: Eric Reinecke <[email protected]>

Author: reinecke

.github/workflows/python-package.yml

@@ -126,7 +126,7 @@ jobs:
           git
     - name: Ensure MSYS2 pip is updated
       if: matrix.python-version == 'mingw64'
-      run: python -m pip install --upgrade pip
+      run: pip install --upgrade pip
     - name: Set up Python ${{ matrix.python-version }}
       if: matrix.python-version != 'mingw64'
       uses: actions/[email protected]