Set utf8 encoding for python

Author: csnewman

.github/workflows/ci.yml

@@ -136,6 +136,8 @@ jobs:
     env:
       DEPOT_TOOLS_WIN_TOOLCHAIN: 0
       GYP_MSVS_OVERRIDE_PATH: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise
+      PYTHONIOENCODING: utf-8
+      PYTHONLEGACYWINDOWSSTDIO: utf-8
 
     steps:
     - name: Free up space