feat(siguro_sgrhdf300w_dehumidifier): add Andersson DHF-20

Issue #6353

custom_components/tuya_local/devices/siguro_sgrhdf300w_dehumidifier.yaml

@@ -14,6 +14,9 @@ products:
   - id: auxphsarxpxxopa2
     manufacturer: VonHaus
     model: 20L
+  - id: v8eojmxqqkjihmj8
+    manufacturer: Andersson
+    model: DHF-20
 entities:
   - entity: humidifier
     class: dehumidifier