feat: upgrade to v4 #970

Job	Run time
build (amd64)	1m 6s
install-tparse	14s
cleanup-runs	4s
split-test-files	13s
test-upgrade-name	7s
test-integration (00)	1m 40s
tests (00)	1m 25s
test-integration (01)	5m 34s
test-integration-multi-node (00)	1m 24s
tests (01)	1m 31s
test-integration (02)	1m 31s
test-integration-multi-node (01)	2m 50s
test-integration (03)	1m 30s
test-integration-multi-node (02)	1m 32s
test-integration-multi-node (03)	1m 26s
tests (02)	1m 27s
tests (03)	1m 27s
upload-coverage-report	12s
test-localnet-blocks	2m 56s
test_integration_multi_node_report	17s
test-integration-report	12s
	28m 38s

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