git: efff9f8a94ab..9c40c4de4c33 - vendor/libder - vendor branch updated

From: Kyle Evans <kevans_at_FreeBSD.org>
Date: Tue, 17 Dec 2024 04:37:14 UTC
The branch vendor/libder has been updated by kevans:

URL: https://cgit.FreeBSD.org/src/log/?id=efff9f8a94ab..9c40c4de4c33

9c40c4de4c33 Remove unwanted artifact from libder import