wayland: Update copyright dates in added color manager source files

src/video/wayland/SDL_waylandcolor.c

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2024 Sam Lantinga <[email protected]>
+  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

src/video/wayland/SDL_waylandcolor.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2024 Sam Lantinga <[email protected]>
+  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages