test

Parallelize benchmarking venv setup #1752

Job	Run time
ubuntu-latest - 3.9	5m 8s
ubuntu-latest - 3.10	5m 18s
ubuntu-latest - 3.11	6m 7s
ubuntu-latest - 3.12	6m 28s
ubuntu-latest - 3.13	6m 21s
ubuntu-latest - 3.13-dev free-threading	8m 1s
ubuntu-latest - 3.14-dev	6m 37s
ubuntu-latest - 3.14-dev free-threading	7m 27s
ubuntu-latest - pypy-3.10	7m 52s
ubuntu-latest - pypy-3.9	7m 49s
macos-latest - 3.13	4m 59s
windows-latest - 3.13	5m 17s
	1h 17m 24s

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