Test

Remove `rich` as required for `tree()` #6438

Job	Run time
py=3.11-min_deps	16m 51s
doctests	1m 4s
py=3.13-upstream	23m 15s
os=windows-latest, py=3.13, deps=optional	22m 4s
os=ubuntu-latest, py=3.11, deps=minimal	16m 4s
os=ubuntu-latest, py=3.13, deps=minimal	16m 18s
os=ubuntu-latest, py=3.11, deps=optional	16m 51s
os=macos-latest, py=3.13, deps=optional	9m 10s
os=ubuntu-latest, py=3.12, deps=optional	17m 6s
os=ubuntu-latest, py=3.12, deps=minimal	15m 41s
os=ubuntu-latest, py=3.13, deps=optional	18m 8s
os=windows-latest, py=3.11, deps=optional	23m 28s
os=macos-latest, py=3.11, deps=optional	12m 28s
Test complete	3s
	3h 28m 31s

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