Updated Nginx version in setup (#9466)

Co-authored-by: Brian Kimutai <briankimutai@microsoft.com>

Author: briantkim93

src/nginx/setup.py

@@ -16,7 +16,7 @@
 
 # TODO: Confirm this is the right version number you want and it matches your
 # HISTORY.rst entry.
-VERSION = '2.0.0b8'
+VERSION = '2.0.0b9'
 
 # The full list of classifiers is available at
 # https://pypi.python.org/pypi?%3Aaction=list_classifiers