masterbater has created Issue #3163: [Feature Request] $user->getChanges(), date transformation not being applied in laravel-mongodb. This Jira ticket was filed by GromNaN

Issue Text:
```php
$validatedData = $request->validated();
$update = $user->update($validatedData);

return response()->json(['message' => 'success', 'data' => $user->getChanges()], Response::HTTP_OK);
```

This returns

{"message":"success","data":{"fname":"fname","updatedAt":{"$date":{"$numberLong":"1727594198505"}}}}

I didnt test with default timestamp fields since I have custom fields, but the transformation should work especially with eloquent. Let me
const CREATED_AT = 'createdAt';
const UPDATED_AT = 'updatedAt';