Upgrade pyo3 api usage #1241

Job	Run time
build mitmproxy-windows	1m 45s
build mitmproxy-linux-x86_64	1m 7s
build mitmproxy-rs (windows-x86_64)	3m 15s
build mitmproxy-linux-arm64	2m 2s
build-macos-app	11s
build mitmproxy-rs (linux-x86_64)	3m 27s
build mitmproxy-rs (linux-arm64)	1m 36s
test (windows-latest, 1.80, --exclude mitmproxy-linux-ebpf)	2m 29s
build mitmproxy-rs (macos-universal)	2m 36s
test (macos-latest, 1.80, --exclude mitmproxy-linux-ebpf)	49s
test (ubuntu-22.04, 1.80, --exclude mitmproxy-linux-ebpf)	1m 28s
test (ubuntu-latest, stable, --exclude mitmproxy-linux-ebpf)	1m 15s
test (ubuntu-latest, nightly, --package mitmproxy-linux-ebpf)	36s
build mitmproxy-macos	38s
test-linux-wheel-sdist	1m 20s
check / check	1s
deploy	1s
	24m 36s

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