[its-consensus-slots] fix flaky tests, which are due to parallelism #1469
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I think I found out why we had a flaky yield next slot test, which was a combination of having a global
LastSlot
object, but parallel tests. Depending on the order of the tests, it could be a slot was yielded even though it shouldn't have. I ran the problematic test 15 times on my local machine, and it passed every time, and the CI was also green on the first try. Hence, I believe that it is fixed.yield_next_slot
failure #1343