Unity Ads and iOS App Tracking Transparency issue - app got rejected

[SamOYUnity3D]

@ffdev78

I’ve submitted a game that contains Unity Ads on the iOS App Store and implemented the App Tracking Transparency permission alert. The app was rejected because of this:

Guideline 5.1.1 - Legal - Privacy - Data Collection and Storage

We noticed you collect data to track after the user selects “Ask App Not to Track” on the App Tracking Transparency permission request.
Specifically, we noticed your app accesses web content you own and collects cookies for tracking after the user asked you not to track them.
Next Steps:
To resolve this issue, please revise your app so that you do not collect data for tracking purposes if the user does not give permission for tracking.
Alternatively, if you do not collect cookies for tracking purposes, revise the cookie prompts that appear in your app to clarify you do not track users.

They attached a screenshot where Unity Ads asks for cookie collection.

How do I fix this issue, since I can’t edit the cookie prompts in the game?

You can try the workaround here: App rejected because Unity Ad's own data collection permission request violates ATT guidelines.