Tests

Prepare 2026.3 release #290

Job	Run time
translations (ubuntu-latest, 3.12)	8s
Build CPython docs (3.12)	3m 19s
Build CPython docs (3.13)	3m 11s
translations (windows-latest, 3.12)	33s
translations (ubuntu-latest, 3)	12s
Build CPython docs (3.15)	3m 14s
Build CPython docs (3.14)	4m 9s
translations (windows-latest, 3)	34s
	15m 20s

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