Change server URL to match IaC

Author: tollsimy

openapi.yaml

@@ -16,7 +16,7 @@ info:
     url: http://www.apache.org/licenses/LICENSE-2.0.html
   version: "1.0.0"
 servers:
-  - url: http://localhost:8080/api/v1
+  - url: http://opp-backend:8080/api/v1
     description: Local server
 externalDocs:
   description: Wiki