git: 9c78088348bc..8fd09407c8e6 - vendor/atf - vendor branch updated

From: Enji Cooper <ngie_at_FreeBSD.org>
Date: Thu, 24 Sep 2026 04:30:11 UTC
The branch vendor/atf has been updated by ngie:

URL: https://cgit.FreeBSD.org/src/log/?id=9c78088348bc..8fd09407c8e6

8fd09407c8e6 atf-sh/integration_test: fix hang when invoked via kyua