WIP Start adding some basic benchmarking infrastructure #972

Job	Run time
sdist_verify	20s
tests / Load tox environments	4s
docs / Load tox environments	3s
allowed-fail-tests / Load tox environments	10s
tests / py312 (ubuntu-latest)	5m 3s
tests / py311 (ubuntu-latest)	3m 39s
tests / py311-online (windows-latest)	5m 45s
tests / py310 (macos-latest)	3m 58s
tests / py310-oldestdeps (ubuntu-latest)	3m 20s
tests / benchmarks (ubuntu-latest)	2m 3s
docs / build_docs-notebooks (ubuntu-latest)	4m 41s
allowed-fail-tests / py311-devdeps (ubuntu-latest)	2m 0s
publish	0s
notify	0s
	31m 6s

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