Update device: Body Comp by Withings (#3408)

Author: github-actions[bot]

library/library.json

@@ -9646,6 +9646,12 @@
             "manufacturer": "ZVIDAR",
             "model": "Z-CM-V01",
             "battery_type": "Rechargeable"
+        },
+        {
+            "manufacturer": "Withings",
+            "model": "Body Comp",
+            "battery_type": "AAA",
+            "battery_quantity": 4
         }
     ]
 }