bump version 2.3.0

Author: Mic92

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name="nixpkgs-review",
-    version="2.2.0",
+    version="2.3.0",
     description="Review nixpkgs pull requests",
     author="Jörg Thalheim",
     author_email="joerg@thalheim.io",