[New msys2-runtime-package version] msys2-runtime: Update (suppress proc_waiter error messages)

[github-actions]

msys2-runtime: Update (suppress proc_waiter error messages)

See https://github.com/msys2/msys2-runtime/pull/236

msys2/MSYS2-packages@56e8b5b

[dscho]

I rolled this into git-for-windows/msys2-runtime#73. Closing this here ticket.