Update realtime_mixin.dart.twig

Author: lohanidamodar

templates/flutter/lib/src/realtime_mixin.dart.twig

@@ -120,13 +120,12 @@ mixin RealtimeMixin {
   }
 
   int _getTimeout() {
-    return _retries < 5
-        ? 1
-        : _retries < 15
-            ? 5
-            : _retries < 100
-                ? 10
-                : 60;
+    return switch (_retries) {
+      < 5 => 1,
+      < 15 => 5,
+      < 100 => 10,
+      _ => 60,
+    };
   }
 
   Uri _prepareUri() {