Add new constants to winsound

[aisk]

They were introduced in: python/cpython#131454 and will be available in 3.14.

[srittau]

Thank you for your contribution. Unfortunately, we only accept PRs to the standard lib for future Python versions after the first beta has been released. Please feel free to ping us after this has happened and if this PR is still relevant.

[Avasam]

@aisk Beta 1 has been released! I don't think contributors can re-open their PRs. You can let us know if you'd like us to re-open this or you can create a new PR!

[aisk]

Hi thank you for review and noticing! I checked that in current main branch (and also 3.14 beta 1), this change is still validate: https://github.com/python/cpython/blob/main/PC/winsound.c#L238-L250 so please re-open this PR, thanks!

[srittau]

Thanks, you need to remove the winsound entries from stdlib/@tests/stubtest_allowlists/win32-py314.txt now.

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉