Fix API break in QrCodeLoginStep.

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/auth/qrlogin/QrCodeLoginStep.kt

@@ -12,6 +12,7 @@ sealed interface QrCodeLoginStep {
     data class EstablishingSecureChannel(val checkCode: String) : QrCodeLoginStep
     data object Starting : QrCodeLoginStep
     data class WaitingForToken(val userCode: String) : QrCodeLoginStep
+    data object SyncingSecrets : QrCodeLoginStep
     data class Failed(val error: QrLoginException) : QrCodeLoginStep
     data object Finished : QrCodeLoginStep
 }