3.9
bpo-41412 and bpo-40948: Windows installer updates (GH-21656)
bpo-41526: Fixed layout of final page of the installer (GH-21871)
Optimize images by IMGbot (GH-21348)
bpo-32507: Change Windows install to include app-local UCRT (#5119)
Issue #25102: Windows installer does not precompile for -O or -OO.
bpo-46948: Fix CVE-2022-26488 by ensuring the Windows Installer correctly uses the install path during repair (GH-31728)
Issue #23260: Update Windows installer
Enables building compressed Windows test builds with --pack option.
