fix:typo

planbench.py

@@ -219,7 +219,7 @@ class PlanBench(datasets.GeneratorBasedBuilder):
         }
         if ("plan_generation" in self.config.name or
                 "plan_optimality" in self.config.name or
-                "plan_generalization" in self.config_name or
+                "plan_generalization" in self.config.name or
                 "replanning" in self.config.name or
                 "plan_execution" in self.config.name):
             features.update({"example_istance_ids": datasets.Sequence(datasets.Value("string"))})