Update lublueblu_sl60d_vacuum.yaml

Corrected indentation on line 140.

custom_components/tuya_local/devices/lublueblu_sl60d_vacuum.yaml

@@ -137,7 +137,7 @@ secondary_entities:
       - id: 8
         type: integer
         name: sensor
-       unit: "%"
+        unit: "%"
         class: measurement
   - entity: sensor
     name: Water tank
@@ -225,14 +225,3 @@ secondary_entities:
         type: integer
         name: sensor
         unit: min
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