bump version to 0.5.0 (#119)

Author: bfineran

src/compressed_tensors/version.py

@@ -17,7 +17,7 @@
 """
 
 
-version_base = "0.4.0"
+version_base = "0.5.0"
 is_release = False  # change to True to set the generated version as a release version