fix(iroh): Parse DNS answer with multiple records into a proper `NodeAddr` #12124

Job	Run time
Cross Build Only (x86_64-unknown-freebsd)	44s
Android Build Only (aarch64-linux-android)	1m 3s
Android Build Only (armv7-linux-androideabi)	1m 6s
Checking docs	1m 30s
cargo deny	24s
Checking fmt	21s
check_semver	3m 54s
clippy_check	1m 11s
Cross Test (i686-unknown-linux-gnu)	2m 1s
Minimal Supported Rust Version	1m 31s
Build wasm32	37s
codespell	4s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 27s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 27s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 11s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 34s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	2m 6s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	2m 40s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 7s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 29s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 27s
netsim-integration-tests / Netsim	5m 9s
	41m 3s

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