feat(iroh): Make `iroh` compile to Wasm & run in browsers #12313

Job	Run time
Android Build Only (aarch64-linux-android)	1m 9s
Android Build Only (armv7-linux-androideabi)	1m 6s
Checking docs	50s
Checking fmt	26s
clippy_check	1m 27s
check_semver	1m 10s
Cross Build Only (x86_64-unknown-freebsd)	44s
Cross Test (i686-unknown-linux-gnu)	1m 59s
cargo deny	29s
Build wasm32	1m 19s
codespell	6s
Minimal Supported Rust Version	1m 8s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	1m 10s
CI Test Suite / Tests (ubuntu-latest, stable, all)	23s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	2m 16s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 15s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 42s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 48s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	31s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 39s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 58s
netsim-integration-tests / Netsim	1m 0s
	30m 35s

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