[Android] Update android_deploy_production.yml to build and distribute release build

[luongvo]

Why

Currently, the android_deploy_production.yml workflow builds and distributes debug build without signing instead of the release build. Debug does not enable proguard so we can not verify the signing & packaging issues.

https://github.com/nimblehq/flutter-templates/blob/6c98f12be2a8e820ac089b5536f95fe3034fc569/.github/workflows/android_deploy_production.yml#L51-L53

• We need to update the workflow to build and distribute the release build for both root & template projects.

Who Benefits?

Developers