Support Github Merge Queues

Description of the feature request

Afaik it requires to support additional triggers that are specific to merge queues.

Use case / for what or how I would use it

Hi Adam,

Just a quick message to share that you can trigger builds based off Github Merge Queues. We have some notes documented here - Build triggers - Bitrise Docs

Let us know if you need more clarification or if this method doesn’t work out.