git: 88417d17c297..ca6c9caa17b3 - vendor/xz - vendor branch updated

From: Xin LI <delphij_at_FreeBSD.org>
Date: Fri, 12 May 2023 06:32:35 UTC
The branch vendor/xz has been updated by delphij:

URL: https://cgit.FreeBSD.org/src/log/?id=88417d17c297..ca6c9caa17b3

ca6c9caa17b3 Vendor import of xz 5.4.3 (trimmed)