Maven Multi-Module - Jacoco report aggregation

I have a multi-module maven projects. A module services with a big and growing number of child modules child-a, ... , child-n. These children also have a dependency on a common modules. I want to find a simple way to generate an aggregated report (in the xml and csv format) with Jacoco (or other simple maven-compatible tool) in my CI (Github Actions)

This seems like a simple enough use case and yet I can't find any way to do this. What I've stumbled onto so far is:

1. jacoco:merge: Can only merge .exec files and then we need source and classes to generate an xml or csv report.
2. jacoco:report-aggregate: Need to have a module with a dependency on all modules (which in my case is highly non-practical and will not respond dynamically to the growth in number of modules since each dependency entry must be added manually, as I haven't found a way to add all children of a services as dependency by only setting one dependency)

The best solution I have so far that would be to create a script which accepts an array of all the children of services and merges all the files with jacococli report. But this solutions still requires to have access to the child's classes, sources AND child's dependencies' classes and sources, which is also highly impractical.

What would be a better solution in my case ?

Thanks.