refactor(test): improve DataAvailabilityChallenge test structure and documentation#15650

smartcontracts merged 3 commits intoethereum-optimism:developethereum-optimism/optimism:developfrom

aliersh:ari/data-availability-challenge-test-refactoraliersh/optimism:ari/data-availability-challenge-test-refactorCopy head branch name to clipboard