Build

Add hooks for calling arbitrary code around each benchmark #309

Job	Run time
tox-jobs (doc)	21s
ubuntu-latest - 3.12	30s
tox-jobs (pep8)	18s
macos-latest - 3.12	27s
windows-latest - 3.12	1m 28s
ubuntu-latest - pypy3.10	1m 11s
ubuntu-latest - pypy3.9	1m 5s
ubuntu-latest - pypy3.8	1m 3s
ubuntu-latest - 3.8	25s
ubuntu-latest - 3.9	26s
ubuntu-latest - 3.10	40s
ubuntu-latest - 3.11	37s
ubuntu-latest - 3.13-dev free-threading	1m 0s
	9m 31s

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