feat(syncing): detect sequencer double-signs and halt #2661

Job	Run time
Detect code changes	5s
Determine Image Tag	4s
proto / buf-check	6s
test / Run Integration Tests	1m 54s
lint / golangci-lint	1m 51s
lint / hadolint	10s
test / Build All ev-node Binaries	1m 29s
lint / markdown-lint	14s
test / Go Mod Tidy Check	1m 28s
test / Run Unit Tests	3m 50s
lint / goreleaser-check	10s
lint / yamllint	12s
docker / Build ev-node-testapp	18m 54s
docker / Build ev-node-grpc	18m 32s
docker / Build ev-node-evm	18m 52s
test / Run E2E System Tests	24m 54s
test / Run EVM Execution Tests	2m 9s
test / Combine and Upload Coverage	8s
docker-tests	0s
	1h 35m 2s

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