test: add a no-raise property-test module for ak.any

[TaiSakuma]

Adds tests/properties/operations/test_any.py, extending the no-raise property-test family to ak.any. ak.any has the same signature as ak.all and raises identically on every probed case behind test_all.py's predicates (records at any axis, unions, axis beyond depth, strings, keepdims/mask_identity combinations), on both the development tree and released 2.13.0, so the module is a copy of test_all.py with the operation substituted; the design predicate and its rules carry over unchanged.

Known-issue clauses: has_issue_4259 unconditionally (#4259 affects every reducer except ak.count) and has_issue_4264 under an integer axis (#4264 names ak.any as affected).

The package docstring's module list gains test_any.py.

Verified: the module passes the default profile and HYPOTHESIS_PROFILE=nightly (10,000 examples per test), and the whole tests/properties/operations directory passes at the default profile.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.41%. Comparing base (6062e76) to head (0d20250).

Additional details and impacted files

see 2 files with indirect coverage changes

[github-actions]

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