Update conftest.py

Author: ofek

tests/integ/sagemaker/experiments/conftest.py

@@ -155,7 +155,7 @@ def tempdir():
 @pytest.fixture(scope="module")
 def dev_sdk_tar():
     resource_dir = os.path.join(DATA_DIR, "experiment")
-    os.system("python setup.py sdist")
+    os.system("python -m build --sdist")
     sdist_path = max(glob.glob("dist/sagemaker-*"), key=os.path.getctime)
     sdk_file = os.path.join(resource_dir, _EXP_PLUS_SDK_TAR)
     shutil.copy(sdist_path, sdk_file)