feat(syncing): detect sequencer double-signs and halt #2605

Job	Run time
Detect code changes	7s
Determine Image Tag	4s
test / Run Unit Tests	3m 17s
test / Build All ev-node Binaries	1m 49s
lint / yamllint	9s
test / Run Integration Tests	2m 4s
lint / golangci-lint	1m 53s
lint / goreleaser-check	13s
lint / markdown-lint	16s
lint / hadolint	14s
test / Go Mod Tidy Check	29s
proto / buf-check	9s
docker / Build ev-node-testapp	17m 17s
docker / Build ev-node-grpc	17m 34s
docker / Build ev-node-evm	17m 36s
test / Run E2E System Tests	9m 43s
test / Run EVM Execution Tests	2m 7s
test / Combine and Upload Coverage	10s
docker-tests	0s
	1h 15m 11s

Provide feedback