Fix dynamo core test failure on Windows

Author: HolyWu

.github/workflows/build-test-windows.yml

@@ -258,7 +258,7 @@ jobs:
         pushd .
         cd tests/py
         cd dynamo
-        python -m pytest -ra -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_runtime_test_results.xml --ignore runtime/test_002_cudagraphs_py.py --ignore runtime/test_002_cudagraphs_cpp.py runtime/
+        ..\..\..\packaging\vc_env_helper.bat python -m pytest -ra -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_runtime_test_results.xml --ignore runtime/test_002_cudagraphs_py.py --ignore runtime/test_002_cudagraphs_cpp.py runtime/
         python -m pytest -ra -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_partitioning_test_results.xml partitioning/
         python -m pytest -ra -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_lowering_test_results.xml lowering/
         popd