test: python 3.12 #370

Job	Run time
Check Manifest	20s
benchmarks	2m 14s
py3.7 on ubuntu-latest	1m 53s
py3.7 on macos-latest	3m 22s
py3.7 on windows-latest	2m 57s
py3.8 on ubuntu-latest	1m 58s
py3.8 on macos-latest	2m 49s
py3.8 on windows-latest	3m 0s
py3.9 on ubuntu-latest	2m 45s
py3.9 on macos-latest	2m 59s
py3.9 on windows-latest	2m 39s
py3.10 on ubuntu-latest	1m 59s
py3.10 on macos-latest	2m 53s
py3.10 on windows-latest	3m 6s
py3.11 on ubuntu-latest pydantic<2	2m 24s
py3.11 on macos-latest	3m 59s
py3.11 on windows-latest pydantic<2	3m 45s
py3.10 on ubuntu-latest PyQt5	2m 15s
py3.10 on macos-latest PyQt6	3m 24s
py3.10 on ubuntu-latest PySide2	2m 16s
py3.10 on macos-latest PySide6	4m 2s
py3.12-dev on ubuntu-latest	33s
test magicgui	1m 48s
typing	28s
	59m 48s

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