refactor: Update default config

Signed-off-by: Mahendra Paipuri <[email protected]>

Author: mahendrapaipuri

roles/ceems_lb/defaults/main.yml

@@ -14,8 +14,9 @@ ceems_lb_config:
   strategy: round-robin
   backends:
     - id: default
-      tsdb_urls:
-        - http://localhost:9090
+      tsdb:
+        - web:
+            url: http://localhost:9090
 ceems_api_server_config: {}
 ceems_api_server_clusters_config: []
 ceems_lb_cli_args: []