Petsnowy Snow+: rename Ball reset to Calibrate ball.

Change from reverted patch that was an additional improvement.

PR #2806

custom_components/tuya_local/devices/petsnowy_snowplus_catlitter.yaml

@@ -212,7 +212,7 @@ entities:
         type: boolean
         name: button
   - entity: button
-    name: Ball reset
+    name: Calibrate ball
     icon: "mdi:scale-balance"
     dps:
       - id: 112