Bump version to 1.1.8 (#129)

Author: sharmaharisam

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="appengine-python-standard",
-    version="1.1.7",
+    version="1.1.8",
     author="Google LLC",
     description="Google App Engine services SDK for Python 3",
     long_description=long_description,