policies: tighten screws #2049

Job	Run time
Verify dev env	12s
Check types using supported type checkers	21s
Build & verify package	15s
Tests on pypy-3.10	18s
Run doctests & render changelog	13s
Tests & Mypy on 3.14	1m 11s
Tests & Mypy on 3.11	1m 1s
Tests & Mypy on 3.12	1m 7s
Tests & Mypy on 3.9	37s
Tests & Mypy on 3.13	1m 4s
Tests & Mypy on 3.10	1m 11s
Combine & check coverage	15s
required-checks-pass	6s
	7m 51s

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