test

Upgrade to pyperf 2.8.1 (#368) #1716

Job	Run time
ubuntu-latest - 3.9	6m 20s
ubuntu-latest - 3.10	6m 21s
ubuntu-latest - 3.11	7m 28s
ubuntu-latest - 3.12	7m 46s
ubuntu-latest - 3.13	8m 11s
ubuntu-latest - 3.13-dev free-threading	9m 8s
ubuntu-latest - 3.14-dev	8m 23s
ubuntu-latest - 3.14-dev free-threading	10m 14s
ubuntu-latest - pypy-3.10	12m 56s
ubuntu-latest - pypy-3.9	9m 39s
macos-latest - 3.13	5m 34s
windows-latest - 3.13	12m 26s
	1h 44m 26s

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