SDL_camera.h: remove comma at end of enum

GCC: comma at end of enumerator list [-Wpedantic]

(cherry picked from commit bf58ff81d8184c8752c4d1c81bcc42c6b56b4e98)

include/SDL3/SDL_camera.h

@@ -147,7 +147,7 @@ typedef enum SDL_CameraPermissionState
 {
     SDL_CAMERA_PERMISSION_STATE_DENIED = -1,
     SDL_CAMERA_PERMISSION_STATE_PENDING,
-    SDL_CAMERA_PERMISSION_STATE_APPROVED,
+    SDL_CAMERA_PERMISSION_STATE_APPROVED
 } SDL_CameraPermissionState;