feat(syncing): detect sequencer double-signs and halt #2546

Job	Run time
Detect code changes	5s
Determine Image Tag	2s
lint / hadolint	10s
test / Go Mod Tidy Check	42s
test / Run Integration Tests	1m 58s
test / Run Unit Tests	3m 4s
lint / golangci-lint	2m 4s
lint / markdown-lint	16s
proto / buf-check	6s
lint / yamllint	9s
lint / goreleaser-check	10s
test / Build All ev-node Binaries	1m 45s
docker / Build ev-node-evm	17m 54s
docker / Build ev-node-grpc	16m 59s
docker / Build ev-node-testapp	17m 51s
test / Run E2E System Tests	12m 26s
test / Run EVM Execution Tests	2m 27s
test / Combine and Upload Coverage	0s
docker-tests	-1s
	1h 18m 7s

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