Context

We run most of our CI jobs on a self-hosted machine, mostly because we want to push the docker image from there (where the docker credential is already configured)

This is causing a few problems:

• the build is executed sequentially and very slow, especially when multiple PRs are pending
• CI host is shared with other projects, which slows down the build further
• They are not built in a standard env, so any env changes on the host could affect the output

Task

We should try to avoid using self-hosted runner when possible, especially for build & test.
We can leave as it is for other tasks where running on self-hosted runner is absolutely required (e.g. benchmarking, as we need to login to other remote hosts from the CI-host)

Acceptance criteria

• remove all the self-hosted usage in build_and_run_test.yml

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