git: dafdd7863e9e..458532c2dd24 - vendor/llvm-project/release-15.x - vendor branch updated

From: Dimitry Andric <dim_at_FreeBSD.org>
Date: Sun, 04 Dec 2022 13:18:43 UTC
The branch vendor/llvm-project/release-15.x has been updated by dim:

URL: https://cgit.FreeBSD.org/src/log/?id=dafdd7863e9e..458532c2dd24

458532c2dd24 Vendor import of llvm-project branch release/15.x llvmorg-15.0.6-0-g088f33605d8a.