ci: test dependabot #25

Job	Run time
Lint package	40s
Pin actions	11s
Typecheck package (ubuntu-latest)	23s
Get parameters	5s
docs / Build/deploy docs	15s
Test package across pythons (ubuntu-latest, 3.14, default and cookie)	1m 15s
Test package across pythons (ubuntu-latest, 3.14, book and argparse and copier)	1m 20s
required-checks-pass	3s
	4m 12s

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