Merge pull request #208 from tykeal/fix_phone_number_squeezing

Fix: Correct bad phone number squeeze logic

custom_components/rental_control/sensors/calsensor.py

@@ -91,7 +91,7 @@ def _extract_last_four(self) -> str | None:
         elif "Phone" in self._event_attributes["description"]:
             phone = self._extract_phone_number()
             if phone:
-                phone.replace(" ", "")
+                phone = phone.replace(" ", "")
                 if len(phone) >= 4:
                     return str(phone)[-4:]