Add integration type to workday (#157731)

Co-authored-by: Claude <noreply@anthropic.com>

homeassistant/components/workday/manifest.json

@@ -4,6 +4,7 @@
   "codeowners": ["@fabaff", "@gjohansson-ST"],
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/workday",
+  "integration_type": "service",
   "iot_class": "local_polling",
   "loggers": ["holidays"],
   "quality_scale": "internal",

homeassistant/generated/integrations.json

@@ -7596,7 +7596,7 @@
       "iot_class": "cloud_polling"
     },
     "workday": {
-      "integration_type": "hub",
+      "integration_type": "service",
       "config_flow": true,
       "iot_class": "local_polling"
     },