test/lit.cfg: fix path to wasm-run.py script

Author: MaxDesiatov

test/lit.cfg

@@ -1733,7 +1733,7 @@ elif run_os == 'wasi':
         config.swift_test_options, config.swift_frontend_test_options])
     subst_target_swift_frontend_mock_sdk = config.target_swift_frontend
     subst_target_swift_frontend_mock_sdk_after = ""
-    config.target_run = os.path.join(config.swift_utils, 'webassembly', 'wasm-run.py')
+    config.target_run = os.path.join(config.swift_utils, 'wasm-run.py')
     config.target_env_prefix = 'WASM_RUN_CHILD_'
 
     if 'interpret' in lit_config.params: