fix test

Author: rebel-jaehwang

tests/torch_compile/unit/v1/spec_decode/test_medusa.py

@@ -242,7 +242,7 @@ def fake_torch_compile(model, backend, options, dynamic):
 
     assert output is compiled_sentinel
     assert captured["model"] is model
-    assert captured["backend"] == "rbln"
+    assert captured["backend"] is medusa_module.logged_rbln_backend
     assert captured["dynamic"] is False
 
     options = cast(dict[str, Any], captured["options"])