Setup automated tests on a SLURM cluster

[lebrice]

• Add a job step on the dev machine (self-hosted github runner) that launches a job on a SLURM cluster using sbatch.
• This sbatch script spawns an ephemereal (single-job) self-hosted github runner.
• This self-hosted github runner waits for a matching job step on GitHub, runs the tests, then uploads the results.

TODOs:

• Show that this can work
• Setup the self-hosted runner dynamically using https://docs.github.com/en/rest/actions/self-hosted-runners?apiVersion=2022-11-28#create-a-registration-token-for-a-repository to automate the creation of github runners
• Xfail / skip any tests that fail in the step that runs on the SLURM cluster

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

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