feat: upgrade to v4 (#357) #971

Job	Run time
install-tparse	17s
build (amd64)	1m 17s
cleanup-runs	0s
split-test-files	13s
test-upgrade-name	7s
tests (00)	1m 29s
test-integration (00)	1m 30s
tests (01)	1m 37s
test-integration-multi-node (00)	1m 30s
test-integration (01)	5m 36s
tests (02)	1m 21s
test-integration (02)	1m 23s
test-integration-multi-node (01)	2m 47s
tests (03)	1m 34s
test-integration (03)	2m 1s
test-integration-multi-node (02)	1m 26s
test-integration-multi-node (03)	1m 28s
test-localnet-blocks	2m 56s
upload-coverage-report	14s
test_integration_multi_node_report	12s
test-integration-report	12s
	29m 10s

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