git: 308a28d6cd2e..31a96ca5f0b6 - vendor/NetBSD/bmake - vendor branch updated

From: Simon J. Gerraty <sjg_at_FreeBSD.org>
Date: Wed, 27 Jul 2022 15:57:17 UTC
The branch vendor/NetBSD/bmake has been updated by sjg:

URL: https://cgit.FreeBSD.org/src/log/?id=308a28d6cd2e..31a96ca5f0b6

31a96ca5f0b6 Import bmake-20220726