feat(iroh): add node wide default author for documents #8406

Job	Run time
check_semver	4m 8s
Build wasm32	34s
Checking docs	1m 31s
Checking fmt	15s
cargo deny	31s
clippy_check	2m 50s
Cross compile (i686-unknown-linux-gnu)	2m 57s
Cross compile (armv7-linux-androideabi)	1m 1s
Cross compile (aarch64-linux-android)	59s
Minimal Supported Rust Version	1m 26s
Run network simulations/benchmarks	7m 29s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	3m 53s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 43s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	3m 50s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 17s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 51s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 6s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 3s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 52s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 49s
	51m 5s

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