refactor(iroh-net): No portmapper is not a warning (#2816) #10751

Job	Run time
Android Build Only (aarch64-linux-android)	1m 28s
Android Build Only (armv7-linux-androideabi)	1m 29s
Checking fmt	32s
check_semver	5m 57s
Cross Build Only (x86_64-unknown-freebsd)	1m 15s
Cross Test (i686-unknown-linux-gnu)	3m 36s
Build wasm32	35s
Checking docs	2m 0s
cargo deny	34s
clippy_check	3m 45s
codespell	8s
Minimal Supported Rust Version	2m 16s
Docker Test	2m 8s
CI Test Suite / Tests (ubuntu-latest, stable, all)	4m 27s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 52s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	4m 33s
CI Test Suite / Tests (ubuntu-latest, stable, default)	3m 11s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	4m 31s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 39s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	4m 24s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	3m 46s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	3m 25s
netsim-integration-tests / Netsim	5m 13s
	1h 5m 44s

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