Add Vec<Attribute> to Header #78

Job	Run time
Clippy	20s
License / vulnerability audit (advisories)	19s
Enforce Rust code format	13s
Preflight docs.rs build	15s
License / vulnerability audit (bans licenses sources)	18s
Preflight crate publish (ubuntu-latest, stable)	19s
Check for unused dependencies	17s
Unit tests (windows-latest, stable)	50s
Unit tests with minimum versions of direct dependencies (windows-latest)	43s
Unit tests (windows-latest, 1.72.0)	43s
Unit tests with minimum versions of direct dependencies (macos-latest)	38s
Unit tests (macos-latest, stable)	37s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	22s
Unit tests (macos-latest, 1.72.0)	39s
Unit tests (ubuntu-latest, stable)	24s
Unit tests (ubuntu-latest, 1.72.0)	29s
	7m 26s

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