git: 762f11d98d5c..788f701923e8 - vendor/xz - vendor branch updated

From: Xin LI <delphij_at_FreeBSD.org>
Date: Wed, 01 Apr 2026 01:46:32 UTC
The branch vendor/xz has been updated by delphij:

URL: https://cgit.FreeBSD.org/src/log/?id=762f11d98d5c..788f701923e8

788f701923e8 Vendor import of xz 5.8.3 (trimmed)