coverage never generates in com.android.test modules

com.android.test modules do not appear to produce any *.ec files for code coverage when running its test.

Steps:

1. Download [CoverageDemoApp.zip](https://github.com/user-attachments/files/25129083/CoverageDemoApp.zip)
2. Run instrumented tests in the `app` module.
3. Note that `app/build/outputs/code_coverage` folder contains coverage files
2. Run instrumented tests in the `testmodule` module.

BUG: `testmodule/build/outputs/code_coverage` folder is empty

Attached project is just a new hello world Android project with a test module added in.

Start by reproducing the issue with the attached CoverageDemoApp.zip: run instrumented tests in the app and testmodule modules and compare their build/outputs/code_coverage directories. The work is done when the com.android.test testmodule generates the expected .ec coverage files there, matching the app module behavior.

Written by the indexing model from the issue text.