* chore(tests-integration): add setup tests with kafka wal to README.md
* feat(tests-integration): add meta wal config
* fix(tests-integration): fix sign of both_instances_cases_with_kafka_wal
* chore(tests-integration): set num_topic to 3 for tests
* test(tests-integration): add a naive test with kafka wal
* chore: apply suggestions from CR
* feat: adds s3 object storage configuration
* feat: adds s3 integration test
* chore: use map
* fix: forgot license header
* fix: checking if bucket is empty in test_on
* chore: address CR issues
* refactor: run s3 test with dotenv
* chore: randomize grpc port for test
* fix: README in tests-integration
* chore: remove redundant comments