[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. Also rebased the branch.
> 
> Looks like the release notes change failed CI.

Not my changes. This was commited 3 hours ago: https://github.com/spaits/llvm-project/commit/c92ad411f2f94d8521cd18abcb37285f9a390ecb .
In this commit the author has forgot to close a `` .

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