Test coverage via a gem

I am seeing on this doc, the gem is deprecated


I am happy to find there is an easy way to plug the new binary via Github Actions

But to be honest, installing the new tool manually on Travis or Circle-Ci, etc. its too much pain and I much prefer the idea of a gem that does it automatically.

setting up all the required parameters requires that I understand both the CI I am using and codacy internal usage.

Please continue supporting the gem.