poc: Expo Fetch

[stevensJourney]

Overview

We currently use react-native-fetch-api in the React Native SDK to perform fetch operations. This is required since the standard React Native fetch implementation does not support HTTP text streaming.

Some users recently reported errors of the form

[PowerSyncStream] Caught exception when uploading. Upload will retry after a delay. Exception: require(_dependencyMap[11], "rea(...)/BlobManager").createFromOptions is not a function (it is undefined)

Which most likely is caused by react-native-fetch-api.

Expo 52 introduced their own implementation for fetch which supports HTTP streaming.

This PR attempts to require and use Expo's fetch implementation (if available) - we default to react-native-fetch-api if Expo >= 52 is not installed.

[changeset-bot]

🦋 Changeset detected

Latest commit: 111a306

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@powersync/react-native	Minor

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