Add integration_type hub to homeworks (home-assistant#159130)

Author: joostlek

homeassistant/components/homeworks/manifest.json

@@ -4,6 +4,7 @@
   "codeowners": [],
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/homeworks",
+  "integration_type": "hub",
   "iot_class": "local_push",
   "loggers": ["pyhomeworks"],
   "requirements": ["pyhomeworks==1.1.2"]