Test

Bump actions/checkout from 5 to 6 in the actions group #6042

Job	Run time
py=3.13-upstream	10m 47s
py=3.11-min_deps	6m 15s
doctests	1m 8s
os=macos-latest, py=3.13, deps=optional	4m 56s
os=ubuntu-latest, py=3.13, deps=minimal	6m 13s
os=ubuntu-latest, py=3.11, deps=minimal	6m 7s
os=windows-latest, py=3.13, deps=optional	8m 43s
os=ubuntu-latest, py=3.12, deps=optional	6m 25s
os=macos-latest, py=3.11, deps=optional	5m 56s
os=windows-latest, py=3.11, deps=optional	8m 56s
os=ubuntu-latest, py=3.11, deps=optional	6m 0s
os=ubuntu-latest, py=3.12, deps=minimal	6m 4s
os=ubuntu-latest, py=3.13, deps=optional	6m 33s
Test complete	4s
	1h 24m 7s

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