Bump PyTest to version 8 #551

Job	Run time
Conda Python 3.10 on ubuntu-latest	2m 24s
Minimal dependency tests	33s
Conda Python 3.10 on macos-latest	2m 29s
Conda Python 3.10 on windows-latest	2m 9s
Non-JIT test coverage	2m 22s
Conda Python 3.11 on ubuntu-latest	2m 23s
Vanilla Python 3.10 on ubuntu-latest	1m 44s
Conda Python 3.11 on macos-latest	2m 24s
Vanilla Python 3.10 on macos-latest	1m 53s
Evaluation-based tests	2m 24s
Conda Python 3.11 on windows-latest	2m 5s
Vanilla Python 3.11 on ubuntu-latest	1m 33s
Conda Python 3.12 on ubuntu-latest	2m 23s
Vanilla Python 3.11 on macos-latest	1m 47s
Vanilla Python 3.12 on ubuntu-latest	1m 26s
FunkSVD tests on Python 3.10	1m 11s
Conda Python 3.12 on macos-latest	2m 26s
Vanilla Python 3.12 on macos-latest	1s
FunkSVD tests on Python 3.11	1m 23s
FunkSVD tests on Python 3.12	1m 20s
Minimal dependency tests for FunkSVD	24s
Conda Python 3.12 on windows-latest	2m 3s
HPF bridge tests on Python 3.10	42s
HPF bridge tests on Python 3.11	40s
Implicit bridge tests on Python 3.10	1s
Minimal dependency tests for Implicit	22s
HPF bridge tests on Python 3.12	1s
Implicit bridge tests on Python 3.11	1s
Implicit bridge tests on Python 3.12	1s
Demos, examples, and docs	53s
Test suite results	1s
	41m 29s

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