Automation: fix ConcurrentModificationException

automation/src/main/java/info/nightscout/androidaps/plugins/general/automation/AutomationPlugin.kt

@@ -150,8 +150,10 @@ class AutomationPlugin @Inject constructor(
 
     private fun storeToSP() {
         val array = JSONArray()
+        val iterator = automationEvents.iterator()
         try {
-            for (event in automationEvents) {
+            while (iterator.hasNext()) {
+                val event = iterator.next()
                 array.put(JSONObject(event.toJSON()))
             }
         } catch (e: JSONException) {