Add rstest crate to parameterize repetitive tests

[moodmosaic]

for example in testnet/stacks-node/src/tests/signer/v0.rs (e.g. unify the single_miner_empty_sortition and multiple_miners_empty_sortition scenarios).
Details to follow.

https://docs.rs/rstest/latest/rstest/#creating-parametrized-tests

[moodmosaic]

This is used now in stacks-core, e.g. #6310.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.