Add initial Arrow PyCapsule support #988

Job	Run time
check-vegafusion-python	10m 26s
check-rust	3m 44s
build-vegafusion-python-osx-64	6m 35s
build-vegafusion-python-linux-arm64	3m 33s
build-vegafusion-python-linux-64	3m 11s
build-vegafusion-python-win-64	6m 42s
build-vegafusion-wasm	3m 57s
test-rust (ubuntu-20.04)	14m 36s
build-vegafusion-python-osx-arm64	2m 44s
test-rust (windows-2022)	23m 38s
build-vegafusion-server-linux-64	2m 59s
test-rust (macos-14)	14m 12s
build-vegafusion-server-linux-arm64	2m 21s
build-vegafusion-server-osx-64	7m 42s
build-vegafusion-server-osx-arm64	3m 11s
build-vegafusion-server-win-64	6m 23s
test-vegafusion-python-osx-arm64	6m 25s
test-vegafusion-python-linux-64	29s
test-vegafusion-python-win-64	10m 13s
	2h 13m 1s

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