`invalidateCredentials` of `PowerSyncBackendConnector` should not be called on any streamSync error

[benoitletondor]

See https://github.com/powersync-ja/powersync-kotlin/blob/main/core/src/commonMain/kotlin/com/powersync/sync/SyncStream.kt#L103

The following code calls invalidateCredentials every time there's an error, no matter the error. If you have no network, the credentials are invalidated every X seconds, resulting in a lot of useless queries (that will fail since there's no network anyway).

Also, the code just above is probably wrong too, you want to rethrow the CancellationException if you catch it, not just avoiding logging in case of it. See https://medium.com/mobilepeople/how-to-break-a-coroutine-cancellation-12e968c31642

[DominicGBauer]

Hi @benoitletondor thanks for raising this as well. I have created a PR that should improve this #104.