set Dmlab version to 2.0.0

PiperOrigin-RevId: 279911225

Author: akolesnikoff

tensorflow_datasets/image/dmlab.py

@@ -32,7 +32,7 @@
 class Dmlab(tfds.core.GeneratorBasedBuilder):
   """Dmlab dataset."""
 
-  VERSION = tfds.core.Version("1.0.0")
+  VERSION = tfds.core.Version("2.0.0")
 
   def _info(self):
     return tfds.core.DatasetInfo(