add inscopix extractor for cell_set #813

Job	Run time
Full tests on ubuntu-latest with Python 3.9	1m 11s
Full tests on windows-latest with Python 3.9	2m 25s
Full tests on macos-latest with Python 3.9	1m 19s
Full tests on macos-13 with Python 3.9	1m 36s
Full tests on ubuntu-latest with Python 3.10	5m 12s
Full tests on windows-latest with Python 3.10	2m 23s
Full tests on macos-latest with Python 3.10	1m 6s
Full tests on macos-13 with Python 3.10	1m 38s
assess-file-changes / Test changed-files	7s
Full tests on ubuntu-latest with Python 3.11	4m 52s
Full tests on windows-latest with Python 3.11	2m 37s
Full tests on macos-latest with Python 3.11	1m 7s
Full tests on macos-13 with Python 3.11	1m 34s
Full tests on ubuntu-latest with Python 3.12	1m 15s
Full tests on windows-latest with Python 3.12	2m 27s
Full tests on macos-latest with Python 3.12	1m 5s
Full tests on macos-13 with Python 3.12	1m 47s
Auto-detecting CHANGELOG.md updates	1s
	33m 42s

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