SDL: fixed windows build after commit 7e8be3f (5e215)

SDL Commits
1 
From 5e2157137447cddccd020f48f317805dd1576800 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 4 Jul 2023 02:24:28 +0300
Subject: [PATCH] fixed windows build after commit 7e8be3f

---
 src/video/windows/SDL_windowsclipboard.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/video/windows/SDL_windowsclipboard.c b/src/video/windows/SDL_windowsclipboard.c
index 892af0d98e91..df8a404a7645 100644
--- a/src/video/windows/SDL_windowsclipboard.c
+++ b/src/video/windows/SDL_windowsclipboard.c
@@ -24,6 +24,7 @@
 
 #include "SDL_windowsvideo.h"
 #include "SDL_windowswindow.h"
+#include "SDL_timer.h"
 #include "../../events/SDL_clipboardevents_c.h"
 
 #ifdef UNICODE