git: a8688e45ec55..6ecbd3d6800f - vendor/openssl-3.0 - vendor branch updated

From: Enji Cooper <ngie_at_FreeBSD.org>
Date: Tue, 09 Jun 2026 19:07:09 UTC
The branch vendor/openssl-3.0 has been updated by ngie:

URL: https://cgit.FreeBSD.org/src/log/?id=a8688e45ec55..6ecbd3d6800f

6ecbd3d6800f openssl: import 3.0.21