feat: add raw external with serverless

Author: rnetser

tests/model_serving/model_server/components/raw_deployment_serverless_co_exist/test_raw_deployment_serverless_inference_co_exist.py

@@ -53,7 +53,14 @@
             SERVERLESS_ISVC_PARAMS,
             RAW_RUNTIME_PARAMS,
             RAW_ISVC_PARAMS,
-        )
+        ),
+        pytest.param(
+            {"name": "serverless-raw-ext-deployment"},
+            SERVERLESS_RUNTIME_PARAMS,
+            SERVERLESS_ISVC_PARAMS,
+            RAW_RUNTIME_PARAMS,
+            {**RAW_ISVC_PARAMS, "external-route": True},
+        ),
     ],
     indirect=True,
 )
@@ -98,7 +105,14 @@ def test_raw_deployment_caikit_created_after_serverless_in_namespace_rest_infere
             RAW_ISVC_PARAMS,
             SERVERLESS_RUNTIME_PARAMS,
             SERVERLESS_ISVC_PARAMS,
-        )
+        ),
+        pytest.param(
+            {"name": "raw-etx-deployment-serverless"},
+            RAW_RUNTIME_PARAMS,
+            {**RAW_ISVC_PARAMS, "external-route": True},
+            SERVERLESS_RUNTIME_PARAMS,
+            SERVERLESS_ISVC_PARAMS,
+        ),
     ],
     indirect=True,
 )