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Fix crash when pre init , kw only, and defaults come together ( 1319)

Fix crash when pre init , kw only, and defaults come together ( 1319): a task in repo2rlenv-commit-runtime-v2 (Harbor dataset). Title: SyntaxError crash when using kw only=True , default , and attrs pre init together

The task

**Title:** `SyntaxError` crash when using `kw_only=True`, `default`, and `__attrs_pre_init__` together

Part of FineEnvs/repo2rlenv-commit-runtime.