Add setuptools install

Author: jborean93

.github/workflows/ci.yml

@@ -100,6 +100,7 @@ jobs:
       shell: pwsh
       if: startsWith(matrix.os, 'windows-')
       run: |
+        python -m pip install setuptools
         python -c "import setuptools.msvc as s; e = s.EnvironmentInfo('AMD64'); print(e.return_env())"
 
     - name: Download gssapi sdist