increase indexer client connection idle-timeout to avoid encountering…

… connection reset error for downloading large region files

magda-indexer/src/main/resources/application.conf

@@ -33,6 +33,10 @@ akka {
             idle-timeout = 120s
         }
 
+        client {
+            # User might increase this setting when encounter connection reset error for downloading large region files
+            idle-timeout = 180s
+        }
 
     }
 }