Open
Description
The new github feature of auto merge, let you enable github to automatically merge a pr if all checks are passing.
I suggest, that scala steward should have an option, that stewards pr's enable auto merge.
It can be activated via GraphQL mutation
A pre-requirement would be, that the feature is enabled in the repo settings, since it can not be activated via REST/GraphQL.
(And imho should not be activated via steward, even if possible. Does not seem to be clean)