refactor: header validator and signature payload #7314

Job	Run time
lint / yamllint	7s
branch_name	2s
lint / goreleaser-check	6s
lint / markdown-lint	1m 37s
lint / golangci-lint	27s
test / Build ev-node EVM Single Docker Image	15m 11s
test / Build ev-node Docker Image	15m 5s
test / Build All ev-node Binaries	1m 19s
test / Go Mod Tidy Check	56s
test / Build local-da Docker Image	4m 19s
test / Run Integration Tests	1m 10s
test / Run Unit Tests	4m 19s
lint / hadolint / hadolint	12s
proto / buf-check	7s
test / Run EVM Execution Tests	2m 24s
test / Run E2E System Tests	3m 48s
test / Combine and Upload Coverage	0s
test / Docker E2E Tests	1m 35s
release	0s
	52m 44s

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