Revert version increment

Author: cobnett3

setup.py

@@ -4,7 +4,7 @@
 
 setup(
     name="aurora-data-api",
-    version="0.6.0",
+    version="0.5.0",
     url="https://github.com/chanzuckerberg/aurora-data-api",
     license="Apache Software License",
     author="Andrey Kislyuk",