git: b6f25b918f97..5fe5b2ed2d88 - vendor/mandoc - vendor branch updated

From: Alexander Ziaee <ziaee_at_FreeBSD.org>
Date: Mon, 29 Sep 2025 17:30:44 UTC
The branch vendor/mandoc has been updated by ziaee:

URL: https://cgit.FreeBSD.org/src/log/?id=b6f25b918f97..5fe5b2ed2d88

5fe5b2ed2d88 Vendor import of mandoc at 2025-09-26