Add Python 3.12 to test matrix #298

Job	Run time
Conda Python 3.10 on ubuntu-latest	3m 16s
Conda Python 3.10 on macos-latest	3m 17s
Conda Python 3.10 on windows-latest	3m 1s
Conda Python 3.11 on ubuntu-latest	3m 15s
Conda Python 3.11 on macos-latest	3m 21s
FunkSVD tests on Python 3.10	43s
Conda Python 3.11 on windows-latest	3m 2s
FunkSVD tests on Python 3.11	34s
Conda Python 3.12 on ubuntu-latest	3m 16s
FunkSVD tests on Python 3.12	33s
Conda Python 3.12 on macos-latest	3m 18s
Minimal dependency tests	3m 17s
Conda Python 3.12 on windows-latest	3m 11s
Non-JIT test coverage	3m 16s
Demos, examples, and docs	3m 20s
Vanilla Python 3.10 on ubuntu-latest	2m 37s
Evaluation-based tests	3m 16s
Minimal dependency tests for FunkSVD	31s
Vanilla Python 3.10 on macos-latest	2m 41s
Vanilla Python 3.10 on windows-latest	2m 34s
Vanilla Python 3.11 on ubuntu-latest	2m 18s
Vanilla Python 3.11 on macos-latest	2m 38s
Vanilla Python 3.11 on windows-latest	2m 23s
Vanilla Python 3.12 on ubuntu-latest	1s
Vanilla Python 3.12 on macos-latest	1s
Vanilla Python 3.12 on windows-latest	2m 2s
Test suite results	1s
	1h 1m 43s

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