Upload namespace_metadata.json with huggingface_hub

namespace_metadata.json

@@ -1 +1 @@
-{"namespaces": ["atari-medium/amidar", "atari-medium/alien", "atari-medium/jamesbond", "atari-medium/montezumarevenge", "atari-medium/tennis", "atari-medium/seaquest", "atari-medium/gravitar"]}
+{"namespaces": ["atari-medium/amidar", "atari-medium/gravitar", "atari-medium/tennis", "atari-medium/kungfumaster", "atari-medium/alien", "atari-medium/montezumarevenge", "atari-medium/jamesbond", "atari-medium/frostbite", "atari-medium/seaquest"]}