Self-hosted runners for the github actions

[cpignedoli]

We should port to tigu the automatic tests o fthe workchains, this will avoid the need to reinstall codes at every test, and will allow for more robust as well as fast checks. Suggested by @yakutovicha thus assigned to him :) @eimrek add commnets https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners

[aktech]

By the way, if you want a no-maintenance method to achieve that, you can use cirun.io for the same.