fix: Fixed encoding in JSON loading

openfire.py

@@ -79,7 +79,7 @@ class OpenFire(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, filepath, split):
-        with open(filepath, "rb", encoding="utf-8") as f:
+        with open(filepath, "rb") as f:
             urls = json.load(f)
             idx = 0
             for label in range(2):