Integrate with Mull for mutation testing - #1202
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Can we add a github actions yaml file to let us manually trigger it on a branch? At first we can trigger against main and use it for making testing improvements, and later we can run it against branches and then link the successful run in the PR comments for any large-ish change?
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Adds support for running the tests under Mull, a mutation testing framework. Mutation testing helps evaluate the quality of the test suite by seeing how well it catches randomly inserted errors in the program under test.
A full run can take quite some time so it probably does not make sense to run this on every PR.