net/mcast-bridge: Update 1.6.0 => 1.7.0
Changelog:
https://github.com/dennypage/mcast-bridge/releases/tag/v1.7.0
PR: 298464
Approved by: osa, vvd (Mentors, implicit)
MFH: 2026Q3
(cherry picked from commit 42832f6735d3d33d73a84893aab633e712fdc201)