try fixing windows 2.7 build

Author: kmike

.github/workflows/tests.yml

@@ -32,6 +32,11 @@ jobs:
           python -m pip install --upgrade virtualenv tox tox-gh-actions
           python -m pip install --upgrade cython
 
+      - name: "Install Visual C++ for Python 2.7"
+        if: runner.os == 'Windows' && runner.python-version == "2.7"
+        run: |
+          choco install vcpython27 -f -y        
+
       - name: "Rebuild CPP files using Cython"
         run: "./update_cpp.sh"