feat: pox-4 support #1816

Job	Run time
lint-docs	1m 1s
test	3m 45s
lint	59s
test-btc-faucet	1m 13s
test-rpc	1m 16s
test-bns	2m 5s
test-bns-e2e	1m 54s
test-subnets	2m 37s
test-2_4 (block-zero-handling)	1m 17s
test-2_4 (faucet-stx)	1m 19s
test-2_4 (pox-3-btc-address-formats)	2m 11s
test-2_4 (pox-3-delegate-aggregation)	1m 35s
test-2_4 (pox-3-delegate-stacking)	1m 50s
test-2_4 (pox-3-delegate-revoked-stacking)	2m 0s
test-2_4 (pox-3-stack-extend-increase)	1m 28s
test-2_4 (pox-3-rosetta-btc-addr-types)	4m 28s
test-event-replay	1m 31s
test-2_4 (pox-3-rosetta-cycle-phases)	5m 5s
test-2_4 (pox-3-rosetta-segwit)	2m 8s
test-2_4 (pox-3-burnchain-stack-stx)	1m 29s
test-2_4 (pox-3-burnchain-delegate-stx)	1m 48s
test-rosetta	1m 50s
test-rosetta-cli-data	2m 4s
test-rosetta-construction	1m 49s
test-rosetta-cli-construction	2m 16s
build-publish	9m 40s
	1h 0m 38s

Provide feedback