Update device: FRITZ_Dect_301 by AVM (#1141)

Author: github-actions[bot]

custom_components/battery_notes/data/library.json

@@ -4294,6 +4294,12 @@
             "manufacturer": "Zooz",
             "model": "ZSE44",
             "battery_type": "CR2450"
+        },
+        {
+            "manufacturer": "AVM",
+            "model": "FRITZ!Dect 301",
+            "battery_type": "AA",
+            "battery_quantity": 2
         }
     ]
 }