Tests

Bump to Node.js 20 by default (#222) #607

Job	Run time
base_setup_pre	20s
binder_link	21s
base_setup (ubuntu-latest, 3.8)	19s
base_setup_minimum	34s
base_setup (ubuntu-latest, 3.11)	20s
check_links	3m 19s
base_setup (windows-latest, 3.8)	1m 20s
Test coverage (ubuntu-latest)	24s
Test coverage (windows-latest)	2m 1s
base_setup (windows-latest, 3.11)	1m 7s
downstream_defaults	1m 3s
downstream_overrides	1m 50s
base_setup (macos-latest, 3.8)	38s
base_setup (macos-latest, 3.11)	37s
install_minimums (3.8)	32s
Make SDist	1m 58s
base_setup (ubuntu-latest, 3.12)	19s
pr_script	34s
Test Lint	1m 35s
update_snapshots-manual-server	1m 11s
update_snapshots	49s
Combine & check coverage	11s
Install from SDist and Test	46s
tests_check	4s
	22m 12s

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