refactor(sequencers): persist prepended batch #463

Job	Run time
Determine Image Tag	4s
lint / hadolint	10s
lint / markdown-lint	18s
lint / yamllint	11s
lint / golangci-lint	1m 27s
test / Run Integration Tests	1m 46s
lint / goreleaser-check	7s
test / Go Mod Tidy Check	25s
test / Build All ev-node Binaries	1m 33s
proto / buf-check	8s
test / Run Unit Tests	2m 49s
docker / Build ev-node-testapp	14m 34s
docker / Build ev-node-evm	15m 16s
test / Run E2E System Tests	4m 33s
test / Run EVM Execution Tests	2m 9s
test / Combine and Upload Coverage	13s
docker-tests / Docker E2E Tests	6m 46s
docker-tests / Docker Upgrade E2E Tests	3m 9s
	55m 38s

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