feat: add recursion guard (Sourcery refactored)

sourcery-ai[bot] commented 8 months ago

Pull Request #468 refactored by Sourcery.

Since the original Pull Request was opened as a fork in a contributor's repository, we are unable to create a Pull Request branching from it.

To incorporate these changes, you can either:

Merge this Pull Request instead of the original, or
Ask your contributor to locally incorporate these commits and push them to the original Pull Request
Incorporate changes via command line
```
git fetch https://github.com/litestar-org/polyfactory pull/468/head
git merge --ff-only FETCH_HEAD
git push
```

NOTE: As code is pushed to the original Pull Request, Sourcery will re-run and update (force-push) this Pull Request with new refactorings as necessary. If Sourcery finds no refactorings at any point, this Pull Request will be closed automatically.

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