Update device: Smart button (3460-L) by Iris (#2330)

Author: github-actions[bot]

custom_components/battery_notes/data/library.json

@@ -6892,6 +6892,11 @@
             "model": "ZSE70",
             "battery_type": "CR123A",
             "battery_quantity": 2
+        },
+        {
+            "manufacturer": "Iris",
+            "model": "Smart button (3460-L)",
+            "battery_type": "CR2450"
         }
     ]
 }