Update comment to reference PR pybind#5940 for Move Subinterpreter fix

Author: rwgk

tests/test_with_catch/test_subinterpreter.cpp

@@ -93,7 +93,7 @@ TEST_CASE("Single Subinterpreter") {
 
 // "Move Subinterpreter" test is disabled on free-threaded Python 3.14+ due to a hang
 // in Py_EndInterpreter() when the subinterpreter is destroyed from a different thread
-// than it was created on. See: https://github.com/pybind/pybind11/pull/5933
+// than it was created on. See: https://github.com/pybind/pybind11/pull/5940
 #    if PY_VERSION_HEX >= 0x030D0000 && !(PY_VERSION_HEX >= 0x030E0000 && defined(Py_GIL_DISABLED))
 TEST_CASE("Move Subinterpreter") {
     std::unique_ptr<py::subinterpreter> sub(new py::subinterpreter(py::subinterpreter::create()));