[New msys2-runtime-package version] msys2-runtime: backport recent fixes

[github-actions]

msys2-runtime: backport recent fixes

This corresponds to https://github.com/msys2/msys2-runtime/pull/296.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

msys2/MSYS2-packages@ae252e9

[dscho]

This was actually a backport of git-for-windows/msys2-runtime#103 and git-for-windows/msys2-runtime#104.