MiniMessage: throwing a legacy formatting codes warning when it should not

Hello! I've discovered a small bug in MiniMessage: MiniMessage warns that legacy color codes aren't supported in the <click:open_url:'[url]'</click> style descriptor. This shouldn't happen, as MiniMessage doesn't process styles inside links. As a result, MiniMessage simply spams the console with warnings: <img width="1010" height="68" alt="Image" src="https://github.com/user-attachments/assets/22ba7e58-4eba-4f1a-8cfb-568cd7db60f0" />