[New msys2-runtime-package version] msys2-runtime: backport signal hang fix

[github-actions]

msys2-runtime: backport signal hang fix

See https://github.com/msys2/msys2-runtime/pull/251

msys2/MSYS2-packages@0af6f79

[dscho]

See git-for-windows/msys2-runtime#80

[dscho]

I am going to merge git-for-windows/msys2-runtime#80, but if we cannot figure out those test suite hangs before Git for Windows v2.48.0-rc1 (due tomorrow, or at least the day after; Yes, it's unfortunate timing with regards to most core Git developers' holidays), I want to roll back Git for Windows' SDK to v3.5.4.

[dscho]

I merged git-for-windows/msys2-runtime#80, therefore this ticket is addressed.

However, since Git v2.48.0-rc1 already landed, I'll roll back Git for Windows' SDK to MSYS2 runtime v3.5.4 and Git for Windows v2.48.0 will not have MSYS2 runtime v3.5.5.