ENH: Remove Python 3.6 from Windows builds

Author: thewtex

scripts/internal/windows_build_common.py

@@ -4,7 +4,7 @@
 import os
 import shutil
 
-DEFAULT_PY_ENVS = ["36-x64", "37-x64", "38-x64", "39-x64"]
+DEFAULT_PY_ENVS = ["37-x64", "38-x64", "39-x64"]
 
 SCRIPT_DIR = os.path.dirname(__file__)
 ROOT_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, "..", ".."))