fix(iroh): Parse DNS answer with multiple records into a proper `NodeAddr` #12118

Job	Run time
cargo deny	24s
Android Build Only (aarch64-linux-android)	1m 3s
Checking fmt	23s
Android Build Only (armv7-linux-androideabi)	1m 5s
Checking docs	1m 10s
check_semver	3m 18s
clippy_check	1m 57s
codespell	3s
Cross Build Only (x86_64-unknown-freebsd)	42s
Cross Test (i686-unknown-linux-gnu)	2m 2s
Minimal Supported Rust Version	1m 18s
Build wasm32	25s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 48s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 31s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 32s
netsim-integration-tests / Netsim	5m 11s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	2m 5s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 24s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 10s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	2m 38s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 17s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 28s
	40m 54s

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