[clang] [Sema] Substitute parameter packs when deduced from function arguments (PR #79371)

[Gábor Spaits via cfe-commits]

spaits wrote:

@cor3ntin @erichkeane
Thank you for checking the updates on my PR.
I fixed the typo and added the release notes.


https://github.com/llvm/llvm-project/pull/79371