sysutils/vm-bhyve-devel: Upgrade port to 1.7.0

Approved by: driesm (maintainer), meta (upstream maintainer)
MFH: 2025Q4
Differential Revision: https://reviews.freebsd.org/D53837
Release Notes: https://github.com/freebsd/vm-bhyve/releases/tag/v1.7.0