docs: high availability sequencer guide (#3293) #2443

Job	Run time
Detect code changes	4s
Determine Image Tag	2s
proto / buf-check	8s
lint / goreleaser-check	9s
test / Build All ev-node Binaries	1m 42s
lint / yamllint	11s
lint / golangci-lint	41s
lint / hadolint	15s
test / Run Unit Tests	3m 2s
test / Run Integration Tests	2m 3s
test / Go Mod Tidy Check	1m 20s
lint / markdown-lint	23s
docker / Build ev-node-evm	21m 16s
docker / Build ev-node-grpc	20m 6s
docker / Build ev-node-testapp	18m 23s
test / Run EVM Execution Tests	2m 16s
test / Run E2E System Tests	12m 42s
test / Combine and Upload Coverage	8s
docker-tests / Docker E2E Tests	6m 44s
docker-tests / Docker Upgrade E2E Tests	3m 35s
docker-tests / Docker Compatibility E2E Tests	4m 46s
	1h 39m 56s

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