tests

chore: upgrade to `iroh@v0.31.0` #298

Job	Run time
check-deps	32s
lint	38s
minimal-crates	23s
test-release (ubuntu-latest, x86_64-unknown-linux-gnu, Linux GNU, stable)	2m 20s
test-release (ubuntu-latest, x86_64-unknown-linux-gnu, Linux GNU, beta)	2m 16s
test-release (macOS-latest, x86_64-apple-darwin, macOS, stable)	2m 33s
test (ubuntu-latest, x86_64-unknown-linux-gnu, Linux GNU, stable)	6m 12s
test-release (macOS-latest, x86_64-apple-darwin, macOS, beta)	2m 44s
test (macOS-latest, x86_64-apple-darwin, macOS, stable)	4m 31s
test-release (windows-latest, x86_64-pc-windows-msvc, Windows MSVC, stable)	4m 49s
test (windows-latest, x86_64-pc-windows-msvc, Windows MSVC, stable)	9m 21s
test-release (windows-latest, x86_64-pc-windows-msvc, Windows MSVC, beta)	3m 51s
test (windows-latest, x86_64-pc-windows-gnu, Windows GNU, stable)	9m 24s
test-release (windows-latest, x86_64-pc-windows-gnu, Windows GNU, stable)	4m 59s
test-release (windows-latest, x86_64-pc-windows-gnu, Windows GNU, beta)	3m 46s
	58m 19s

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