Fix: Update type hints for filter_ parameter in find() and find_one()

[AdamGreenAwardMatcher]

Simple fix of type signatures for non nested querying using firedantic. Only a type hint change, so no runtime impact on library. Just makes the type signatures align with the functionality.

• Fixed type signature for filter_ parameter in find() and find_one() methods
• Now correctly supports int, float, and bool types in addition to str
• Updated both async and sync versions via unasync

Previously a query like this:

    entities = await FiredanticEntity.find(
        {"business_id": business_id, "is_deleted": False}
    )

Would cause a typing error, with the changes it now does not.