New test CI attempting to use Github Actions

[privat]

The script we used and that linked github repo and gitlab CI is broken, thanks to changes in both web api.
As maintaining this script is cumbersome, another option is to use Gitub Action that might be now more mature and usable in production.

This PR thus introduces a complete CI workflow with basic tests and a full matrix check.
All tests should run and be green, including weird ones that require neo4j, mongodb or various third parties libraries.

The main changes are:

• disabling pug used in a few popcorn tests (2, the lowest value of few)
• disabling android as the graddlew script need to be updated (and maybe more work is required)
• disabling some actor examples (to investigate)

[privat]

All green after 5h of CPU time 🎉

[privat]

Ok, I played more with the CI to solve the forked repo issue.
Basically, it needs two components :

• the workflow on the pr with read-only privilege, that produce artifacts
• the workflow on the master branch with write privilege that read the produced artifacts of produce reports and update the status of the PR

This also have the advantage of having a single big report instead of a small one per job.

The main drawback (for now) is that while the PR provide both workflow, only the PR one is run as the master one is not installed (yet). It will be once (if) the PR is merged.
However, I did install it in my fork, so we can see some results here: privat#5