Upgrade pip before installing dependencies

Author: cclauss

.github/workflows/pip_install_pypiwin32.yml

@@ -23,9 +23,10 @@ jobs:
       - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
+      - run: python3 -m pip install --upgrade pip
       # https://github.com/pypa/setuptools/blob/47b724639703d0c512f275a316dbb99e6c226e38/CHANGES.rst#v5800
       - if: matrix.python-version == '3.9'  # Before 2to3 for builds was removed.
         run: |
-          pip install ´setuptools<58.0.0'
+          pip install 'setuptools<58.0.0'
           pip install --editable .
       - run: pip install pypiwin32