ci: add arm64 runner #115

Job	Run time
Fetch Grammars	4m 30s
Dist (x86_64-macos)	12m 32s
Dist (x86_64-linux)	17m 52s
Dist (aarch64-macos, macos-latest, stable, aarch64-apple-darwin, false, true)	6m 21s
Dist (x86_64-windows)	27m 55s
Dist (aarch64-linux, ubuntu-24.04-arm, stable, aarch64-unknown-linux-gnu, false)	12m 25s
Publish	6m 8s
	1h 27m 43s

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