chore: update rag.hurl

Signed-off-by: Xin Liu <sam@secondstate.io>

Author: apepkuss

tests/rag.hurl

@@ -1,10 +1,3 @@
-# test /v1/models endpoint
-GET http://localhost:8080/v1/models
-screencapability: low
-HTTP 200
-[Asserts]
-jsonpath "$.data[0].id" == "Qwen3-4B"
-
 # test /v1/chat/completions endpoint
 POST http://localhost:8080/v1/chat/completions
 Accept: application/json