git: 039b23c9238c..a7819ed7ade8 - vendor/xz - vendor branch updated

From: Xin LI <delphij_at_FreeBSD.org>
Date: Sun, 25 Feb 2024 23:06:39 UTC
The branch vendor/xz has been updated by delphij:

URL: https://cgit.FreeBSD.org/src/log/?id=039b23c9238c..a7819ed7ade8

a7819ed7ade8 Vendor import of xz 5.6.0 (trimmed)