Add Python benchmark suite for `3.x` #464

Job	Run time
build_emscripten_wheel (ubuntu-22.04, x86_64, 3.9, 20.x)	19m 0s
build_js (ubuntu-22.04, 3.9, 20.x)	47m 45s
build_and_test_rust (ubuntu-22.04, x86_64, 20.x)	21m 59s
build_python (ubuntu-22.04, x86_64, 3.9, 20.x, false)	19m 35s
test_python (ubuntu-22.04, 3.9, 20.x, false, x86_64)	2m 17s
test_js (ubuntu-22.04, 3.9, 20.x)	2m 25s
build_and_test_juptyerlab (ubuntu-22.04, x86_64, 3.9, 20.x, false)	3m 15s
benchmark_js	0s
benchmark_python	0s
publish	0s
	1h 56m 16s

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