Update libriheavy.py

libriheavy.py

@@ -212,6 +212,7 @@ class Libriheavy(datasets.GeneratorBasedBuilder):
                 except Exception as e:
                     print(e, "retrying in 60s")
                     sleep(60)
+                    retry += 1
             utterances = npz.keys()
             with gzip.open(chunk["text"], "rt") as f:
                 text = json.load(f)