Add an action for on demand emulator tests

[EmmanuelMess]

Description

Add an action for on demand emulator tests.

Issue tracker

Automatic tests

• Added unit tests for specific individual functions
• Added headless tests for new app functionality
• Added emulator tests for new UI elements

Manual tests

• Done

https://github.com/EmmanuelMess/AmazeFileManager/actions/workflows/android-emulator-ondemand.yml

Build tasks success

Successfully running following tasks on local:

• ./gradlew assembledebug
• ./gradlew spotlessCheck

Generative code

• This PR used generative code tools (GenAI, LLMs, etc.)

• Model: Sonnet

• Version: 4.6

• Provider: Claude

[VishnuSanal]

https://github.com/EmmanuelMess/AmazeFileManager/actions/workflows/android-emulator-ondemand.yml

hi @EmmanuelMess, the test runs fails - why? can you PTAL?

[EmmanuelMess]

I think the master reference failed, but with the current release/4.0 and with this branch it works (although the tests fail). I updated the checkout action, and I fixed a concurrency bug.

[VishnuSanal]

let's merge and test it in the release branch as mentioned.