net/rabbitmq: Update 4.2.5 => 4.2.7
Changelog:
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.7
Sponsored by: UNIS Labs
MFH: 2026Q2
(cherry picked from commit e0097ab82952e321f281057cf0a66c3d28e0312d)