Update version

Author: fabaff

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name="volkszaehler",
-    version="0.5.0",
+    version="0.5.1",
     description="Python Wrapper for interacting with the Volkszahler API.",
     long_description=long_description,
     url="https://github.com/home-assistant-ecosystem/python-volkszaehler",