tests

switch to DelimiterVersions for object listing #573

Job	Run time
lint	1m 31s
build-ci / vault-ci	44s
build-ci / redis-ci / build	15s
build-ci / warp10-ci / build	1m 33s
build-ci / redis-replica-ci / build	9s
tests-v2-with-vault	2m 51s
run unit tests	1m 0s
run v2 soft limit test	6h 0m 6s
run v2 hard limit test	2m 33s
run v1 client tests	1m 30s
run v1 server tests	1m 21s
run v1 cron tests	2m 15s
run v1 interval tests	2m 9s
	6h 17m 57s

Provide feedback