[tests] update models

tests/models/test_gptq_bitblas.py

@@ -13,9 +13,11 @@ Run `pytest tests/models/test_bitblas.py`.
 """
 from dataclasses import dataclass
 
+import os
 import pytest
 
 from .utils import check_logprobs_close
+from ..utils import models_path_prefix
 
 
 @dataclass
@@ -24,7 +26,7 @@ class ModelPair:
 
 
 model_pairs = [
-    ModelPair(model_gptq="hxbgsyxh/opt-125m-4bit-128g"),
+    ModelPair(model_gptq=os.path.join(models_path_prefix, "hxbgsyxh/opt-125m-4bit-128g")),
 ]
 
 
@@ -58,4 +60,4 @@ def test_models(
         outputs_1_lst=bitblas_outputs,
         name_0="gptq",
         name_1="gptq_bitblas",
-    )
+    )
\ No newline at end of file