Merge pull request #5480 from woocommerce/issue/5479-cancelling-mandatory-update-flashes-error

[Mobile Payments] Prevent error from being displayed when a mandatory update is cancelled

Author: joshheald

WooCommerce/Classes/ViewRelated/CardPresentPayments/CardReaderConnectionController.swift

@@ -539,15 +539,19 @@ private extension CardReaderConnectionController {
             return
         }
 
-        if underlyingError == .readerSoftwareUpdateFailedBatteryLow {
+        switch underlyingError {
+        case .readerSoftwareUpdateFailedInterrupted:
+            // Update was cancelled, don't treat this as an error
+            return
+        case .readerSoftwareUpdateFailedBatteryLow:
             alerts.updatingFailedLowBattery(
                 from: from,
                 batteryLevel: batteryLevel,
                 close: {
                     self.state = .searching
                 }
             )
-        } else {
+        default:
             alerts.updatingFailed(
                 from: from,
                 tryAgain: nil,