Purchases (Start Trial or Subscribe) are not sent

### Checklist before submitting a bug report

- [X] I've updated to the latest released version of the SDK
- [X] I've searched for existing [GitHub issues](https://github.com/facebook/facebook-ios-sdk/issues)
- [X] I've looked for existing answers on [Stack Overflow](https://facebook.stackoverflow.com), the [Facebook Developer Community Forum](https://developers.facebook.com/community/) and the [Facebook Developers Group](https://www.facebook.com/groups/fbdevelopers)
- [X] I've read the [Code of Conduct](https://github.com/facebook/facebook-ios-sdk/blob/main/CODE_OF_CONDUCT.md)
- [X] This issue is not security related and can safely be disclosed publicly on GitHub

### Xcode version

16.1

### Facebook iOS SDK version

17.4.0

### Dependency Manager

SPM

### SDK Framework

Core

### Goals

I need to run Facebook Ads campaign with Start Trial conversion optimizations. Events are sent by Facebook SDK.

### Expected results

Purchase conversions (Subscribes and Start Trial) are automatically tracked by Facebook SDK.

### Actual results

Facebook SDK does not send Start Trial or Subscribe events.

### Steps to reproduce

1)Integrate Facebook SDK
2)Launch app
3)Make a purchase (Subscribe or Start Trial) in Sandbox

### Code samples & details

```swift
I have analyzed traffic with Charles, there were no requests sending purchases to Facebook. I use Adapty for subscriptions, it uses Store Kit 2. Tried both variants (when ATT is granted and not granted).
```