[ruff] Guard against use of default_factory as a keyword argument (RUF026)

[mikeleppane]

Summary

Add a rule for defaultdict(default_factory=callable). Instead suggest using defaultdict(callable).

See: #9509

If a user tries to bind a "non-callable" to default_factory, the rule ignores it. Another option would be to warn that it's probably not what you want. Because Python allows the following:

from collections import defaultdict

defaultdict(default_factory=1)

this raises after you actually try to use it:

dd = defaultdict(default_factory=1)
dd[1]

=>

KeyError: 1

Instead using callable directly in the constructor it will raise (not being a callable):

from collections import defaultdict

defaultdict(1)

=>

TypeError: first argument must be callable or None

Test Plan

cargo test

[github-actions]

ruff-ecosystem results

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[charliermarsh]

Thanks!