Update pystiebeleltron to 0.2.3 (home-assistant#150339)

Co-authored-by: Joost Lekkerkerker <[email protected]>

Author: 2 people

homeassistant/components/stiebel_eltron/manifest.json

@@ -6,5 +6,5 @@
   "documentation": "https://www.home-assistant.io/integrations/stiebel_eltron",
   "iot_class": "local_polling",
   "loggers": ["pymodbus", "pystiebeleltron"],
-  "requirements": ["pystiebeleltron==0.1.0"]
+  "requirements": ["pystiebeleltron==0.2.3"]
 }