Create hotfix release 2.2.1

Cito · Cito · commit dd7fcde12a12 · 2019-07-18T19:59:53.000+02:00
diff --git a/graphql/__init__.py b/graphql/__init__.py
@@ -168,7 +168,7 @@
     set_default_backend,
 )
 
-VERSION = (2, 2, 0, "final", 0)
+VERSION = (2, 2, 1, "final", 0)
 __version__ = get_version(VERSION)
 
 
