update changelog

Author: ytdHuang

CHANGELOG.md

@@ -230,4 +230,4 @@ Release date: 2024-11-13
 [#455]: https://github.com/qutip/QuantumToolbox.jl/issues/455
 [#456]: https://github.com/qutip/QuantumToolbox.jl/issues/456
 [#460]: https://github.com/qutip/QuantumToolbox.jl/issues/460
-[#471]: https://github.com/qutip/QuantumToolbox.jl/issues/471
+[#471]: https://github.com/qutip/QuantumToolbox.jl/issues/471