Pin Horus to 0.3.1 temporarily (backport #12846)#12872

dumbbell merged 2 commits intov4.0.xrabbitmq/rabbitmq-server:v4.0.xfrom

mergify/bp/v4.0.x/pr-12846rabbitmq/rabbitmq-server:mergify/bp/v4.0.x/pr-12846Copy head branch name to clipboard