[Mobile]: Add Google Play publishing in CodeMagic for "Android production" build

[KarinBerg]

Is there an existing request for this feature?

• I have searched the existing issues

Is your feature request related to a problem? Please describe.

At the moment we have to manually upload the Android App Bundle (aab) file to a testing track in the Google Play Console.
This is time-consuming and error-prone. So we should use an automatic approach here.

Describe the solution/feature

CodeMagic offers an automatic deployment into a Internal testing track in the Google Play Console. This is described here: https://docs.codemagic.io/flutter-publishing/publishing-to-google-play/

Describe alternatives you've considered

There are no other options. The mentioned above is the standard way to to this and the Google way :).

Criteria for Completion

• When a CodeMagic "Android Production" build is successfully running, then the "Internal Testing" track contains a new app release.

Anything else?

No response

Code of Conduct

• I've read the Code of Conduct and understand my responsibilities as a member of the Social Income community