feat(iroh): add node wide default author for documents #8405

Job	Run time
Build wasm32	27s
cargo deny	28s
Checking fmt	7s
Checking docs	1m 33s
check_semver	3m 6s
clippy_check	2m 14s
Cross compile (i686-unknown-linux-gnu)	1m 47s
Cross compile (armv7-linux-androideabi)	1m 3s
Minimal Supported Rust Version	1m 41s
Cross compile (aarch64-linux-android)	59s
Run network simulations/benchmarks	4m 27s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	3m 46s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	22s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 38s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 58s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 13s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 5s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 9s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	1m 24s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 56s
	40m 23s

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