getExperimentsAndConfigs return 502 bad gateway

### Description

After some update of the Firebase SDK (now Im using 12.12.1) I start receiving in Sentry huge amount of errors, some parts of the SDK calling `https://www.googleapis.com/experimentsandconfigs/v1/getExperimentsAndConfigs` and the request return 502 bad gateway. I received 100k such errors for the last 30 days! After some investigation everything points to Firebase SDK, no other parts of my app can call this endpoint.
My app is importing only FirebaseAnalytics and FirebaseMessaging. Im using them only to send events to GA4 and registering for push notifications.

### Firebase SDK Version

12.12.1

### Xcode Version

26.4.1

### Installation Method

Swift Package Manager

### Firebase Product(s)

Analytics

### Targeted Platforms

iOS