Try upgrading wheel, but after upgrading pip

Author: EliahKagan

.github/workflows/cygwin-test.yml

@@ -60,6 +60,12 @@ jobs:
         # This is used unless, and before, an updated pip is installed.
         ln -s pip3 /usr/bin/pip
 
+    - name: Update PyPA packages
+      run: |
+        # Get the latest pip, wheel, and prior to Python 3.12, setuptools.
+        python -m pip install -U pip $(pip freeze --all | grep -ow ^setuptools)
+        python -m pip install -U wheel
+
     - name: Install project and test dependencies
       run: |
         pip install ".[test]"