feat: Can you add a reusable workflow for running app testing using maestro or similar?

[andreped]

Description Thank you for the cool workflows! Great project! :]

From the overview of workflows, it would make a lot of sense to include a reusable workflow for app testing. This could be with the Dart/Flutter testing framework, or using an external tool, if you prefer that.

I am currently looking into Maestro, so I suggested that as an option.