SDL: Bumped version of macro 'main' to 3.1.3

From 540db0d164ebb87ba5a8426daf59c563a9fde300 Mon Sep 17 00:00:00 2001
From: Petar Popovic <[EMAIL REDACTED]>
Date: Wed, 23 Oct 2024 20:53:51 +0200
Subject: [PATCH] Bumped version of macro 'main' to 3.1.3

---
 include/SDL3/SDL_main.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/SDL3/SDL_main.h b/include/SDL3/SDL_main.h
index f15d14f744047..9b97abda6d3d8 100644
--- a/include/SDL3/SDL_main.h
+++ b/include/SDL3/SDL_main.h
@@ -168,7 +168,7 @@
  * docs/README-main-functions.md in the source tree) for a more detailed
  * explanation.
  *
- * \since This macro is used by the headers since SDL 3.0.0.
+ * \since This macro is used by the headers since SDL 3.1.3.
  *
  * \sa SDL_AppInit
  * \sa SDL_AppEvent