Add integration_type hub to duotecno (home-assistant#158936)

Author: joostlek

homeassistant/components/duotecno/manifest.json

@@ -4,6 +4,7 @@
   "codeowners": ["@cereal2nd"],
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/duotecno",
+  "integration_type": "hub",
   "iot_class": "local_push",
   "loggers": ["pyduotecno", "pyduotecno-node", "pyduotecno-unit"],
   "requirements": ["pyDuotecno==2024.10.1"],