Reorganize the tests into unit/functional/integration/external #35

Job	Run time
pre-commit / pre-commit	15s
pre-commit / lint-extension	1m 34s
codeql / codeql	2m 34s
test-conda / test-conda (ubuntu-latest, 3.9)	15m 46s
test-conda / test-conda (macos-latest, 3.9)	20m 25s
test-conda / test-conda (windows-latest, 3.9)	13m 24s
test-pip / test-pip (3.8, ~=2.0, true)	11m 23s
test-pip / test-pip (3.9, ~=2.0, true)	7m 40s
test-pip / test-pip (3.10, ~=2.0, true)	7m 37s
test-pip / test-pip (3.11, ~=2.0, true)	10m 42s
test-pip / test-pip (3.12-dev, true)	12m 28s
test-pip / test-pip (3.13-dev, true)	2m 48s
test-pip / test-pip (3.x)	12m 21s
test-pip / test-pip (3.x, ~=3.0)	12m 2s
test-pip / test-pip (3.11, ~=4.0, true)	1m 34s
test-pip / test-pip (3.x, false)	12m 7s
test-pip / test-pip (3.x, true, true)	15m 27s
build / build	3m 45s
pass	2s
	2h 43m 54s

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