Revisit CI for the new testsuite in Rust
Continuing from !408 (merged) - these are @svenfoo's issues; CC @dlalic because this pertains the CI:
We will want to look at the CI pipeline again though. The step that is called 'Unit Tests' now also runs most of the acceptance tests, the "Acceptance Tests" then repeats all of that again.
Should we keep 'Unit Tests' and tweak it to run just the unit tests, that is all Rust tests accept the black box tests from the tests
folder? Or we can just remove that step entirely as it will not any longer be worth the effort?