Use native arm64 runners #1262

Job	Run time
build mitmproxy-rs (windows-x86_64)	4m 50s
build mitmproxy-rs (linux-x86_64)	3m 42s
build mitmproxy-windows	3m 24s
build mitmproxy-linux-x86_64	1m 26s
build-macos-app	10s
build mitmproxy-rs (linux-arm64)	2m 6s
build mitmproxy-linux-arm64	3m 18s
build mitmproxy-rs (macos-universal)	1m 59s
build mitmproxy-linux-x86_64-py3.13	1m 12s
test (windows-latest, 1.80, --exclude mitmproxy-linux-ebpf)	2m 56s
build mitmproxy-linux-arm64-py3.13	3m 14s
test (macos-latest, 1.80, --exclude mitmproxy-linux-ebpf)	44s
test (ubuntu-22.04, 1.80, --exclude mitmproxy-linux-ebpf)	1m 30s
test (ubuntu-latest, stable, --exclude mitmproxy-linux-ebpf)	1m 6s
test (ubuntu-latest, nightly, --package mitmproxy-linux-ebpf)	34s
build mitmproxy-macos	29s
test-linux-wheel-sdist	2m 1s
check / check	2s
deploy	0s
	34m 43s

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