Merge pull request #4 from ns0m/fix/pending-intent-sdk31

Android: Prevent app crash for targetSDK 31/Android 12

src/android/src/com/chariotsolutions/nfc/plugin/NfcPlugin.java

@@ -483,7 +483,7 @@ private void createPendingIntent() {
             Activity activity = getActivity();
             Intent intent = new Intent(activity, activity.getClass());
             intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
-            pendingIntent = PendingIntent.getActivity(activity, 0, intent, 0);
+            pendingIntent = PendingIntent.getActivity(activity, 0, intent, PendingIntent.FLAG_MUTABLE);
         }
     }