Update SDL_gamepad.inc to 3.4.4

Author: Free-Pascal-meets-SDL-Website

units/SDL3.pas

@@ -104,7 +104,7 @@ interface
 {$I SDL_mouse.inc}                        // 3.4.4
 {$I SDL_keyboard.inc}                     // 3.4.4
 {$I SDL_joystick.inc}                     // 3.4.4
-{$I SDL_gamepad.inc}                      // 3.2.0
+{$I SDL_gamepad.inc}                      // 3.4.4
 {$I SDL_haptic.inc}                       // 3.2.0
 {$I SDL_touch.inc}                        // 3.4.4
 {$I SDL_pen.inc}                          // 3.2.20