GH-104584: Fix refleak when tracing through calls (GH-110593)

Author: brandtbucher

Misc/NEWS.d/next/Core and Builtins/2023-10-10-00-49-35.gh-issue-104584.z94TuJ.rst

@@ -0,0 +1 @@
+Fix a reference leak when running with :envvar:`PYTHONUOPS` or :option:`-X uops <-X>` enabled.

Objects/funcobject.c

@@ -288,7 +288,7 @@ _PyFunction_LookupByVersion(uint32_t version)
     PyFunctionObject *func = interp->func_state.func_version_cache[
         version % FUNC_VERSION_CACHE_SIZE];
     if (func != NULL && func->func_version == version) {
-        return (PyFunctionObject *)Py_NewRef(func);
+        return func;
     }
     return NULL;
 }