fix image dataset bug (#33630)

python/paddle/dataset/image.py

@@ -94,7 +94,7 @@ def batch_images_from_tar(data_file,
     """
     batch_dir = data_file + "_batch"
     out_path = "%s/%s_%s" % (batch_dir, dataset_name, os.getpid())
-    meta_file = "%s/%s.txt" % (batch_dir, dataset_name)
+    meta_file = "%s/%s_%s.txt" % (batch_dir, dataset_name, os.getpid())
 
     if os.path.exists(out_path):
         return meta_file