Fix Android 12 PendingIntent

Fix Android 12 (SDK 31) notifications due to missing PendingIntent flags.

Author: cristianoccazinsp

android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java

@@ -107,7 +107,7 @@ private PendingIntent toScheduleNotificationIntent(Bundle bundle) {
             notificationIntent.putExtra(RNPushNotificationPublisher.NOTIFICATION_ID, notificationID);
             notificationIntent.putExtras(bundle);
 
-            return PendingIntent.getBroadcast(context, notificationID, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+            return PendingIntent.getBroadcast(context, notificationID, notificationIntent, Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ? PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE : PendingIntent.FLAG_UPDATE_CURRENT);
         } catch (Exception e) {
             Log.e(LOG_TAG, "Unable to parse Notification ID", e);
         }
@@ -451,7 +451,7 @@ public void sendToNotificationCentreWithPicture(Bundle bundle, Bitmap largeIconB
             int notificationID = Integer.parseInt(notificationIdString);
 
             PendingIntent pendingIntent = PendingIntent.getActivity(context, notificationID, intent,
-                    PendingIntent.FLAG_UPDATE_CURRENT);
+                    Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ? PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE : PendingIntent.FLAG_UPDATE_CURRENT);
 
             NotificationManager notificationManager = notificationManager();