[FR]: Create a combined-combined (androidTest+test across all modules) coverage report

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Describe the problem

The coverage-reports.zip file contains one report per module

### Describe the solution

Something like this https://github.com/SurpSG/jacoco-gradle-plugin-merge-coverage/blob/master/build.gradle#L28C1-L41C2

### Additional context

_No response_

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct

Start by inspecting the coverage-reports.zip output and the linked build.gradle example to understand how reports are currently produced per module. The work is done when androidTest and test coverage from all modules is combined into one report, rather than one report per module.

Written by the indexing model from the issue text.