patch 9.0.1190: AppVeyor runs much slower with MSVC 2022
Problem: AppVeyor runs much slower with MSVC 2022.
Solution: Go back to MSVC 2015. (Christopher Plewright, closes #11810)
diff --git a/ci/appveyor.bat b/ci/appveyor.bat
index b780ff1..b97c365 100644
--- a/ci/appveyor.bat
+++ b/ci/appveyor.bat
@@ -22,7 +22,7 @@
nmake -f Make_mvc.mak CPU=AMD64 ^
OLE=no GUI=yes IME=yes ICONV=yes DEBUG=no POSTSCRIPT=yes ^
PYTHON_VER=27 DYNAMIC_PYTHON=yes PYTHON=C:\Python27-x64 ^
- PYTHON3_VER=311 DYNAMIC_PYTHON3=yes PYTHON3=C:\Python311-x64 ^
+ PYTHON3_VER=38 DYNAMIC_PYTHON3=yes PYTHON3=C:\Python38-x64 ^
FEATURES=%FEATURE%
) ELSE (
nmake -f Make_mvc.mak CPU=AMD64 ^