Bump timezonefinder to 6.5.3

Fixes install issue with HA 2024.10.0b0.

custom_components/entity_tz/manifest.json

@@ -9,6 +9,6 @@
   "iot_class": "calculated",
   "issue_tracker": "https://github.com/pnbruckner/ha-entity-tz/issues",
   "loggers": ["geopy"],
-  "requirements": ["async-lru==2.0.4", "timezonefinder==5.2.0"],
+  "requirements": ["async-lru==2.0.4", "timezonefinder==6.5.3"],
   "version": "1.2.1"
 }