chore(model-server): use the correct data type for tags in specs

The syntax was wrong. As this has not caused a real problem for users,
this is a chore commit now.

Author: languitar

model-server-openapi/specifications/model-server-v2.yaml

@@ -16,7 +16,7 @@ servers:
   - url: '/'
     description: model-server
 tags:
-  - ids
+  - name: ids
 paths:
   /v2/server-id:
     get: