feat(header): cache hash #9861

Job	Run time
Markdown Lint	9s
setup	1s
yamllint	5s
hadolint / hadolint	11s
goreleaser	0s
upload-docs	0s
go-ci / Setup	1s
go-ci / Go Mod Tidy Check	27s
go-ci / Lint	2m 41s
go-ci / Lint Imports	14s
go-ci / Unit Tests Coverage (ubuntu-latest)	5m 11s
go-ci / Unit Tests Coverage (macos-14)	4m 25s
go-ci / Integration Tests / Da Tests Sync	2m 45s
go-ci / Integration Tests / Integration Tests API	3m 27s
go-ci / Integration Tests / Integration Tests Blob	2m 50s
go-ci / Integration Tests / Integration Tests Fraud	2m 28s
go-ci / Integration Tests / Integration Tests ND	2m 54s
go-ci / Integration Tests / Integration Tests p2p	2m 58s
go-ci / Integration Tests / Integration Tests Reconstruction	2m 31s
go-ci / Integration Tests / Integration Tests Sync	2m 42s
go-ci / Integration Tests / Integration Tests Sync	3m 6s
	39m 6s

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