update SDL3 from 3.2.20 to 3.4.2

libs/SDL3/src/loadso/windows/SDL_sysloadso.c

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+  Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -29,7 +29,7 @@
 
 SDL_SharedObject *SDL_LoadObject(const char *sofile)
 {
-    if (!sofile) {
+    CHECK_PARAM(!sofile) {
         SDL_InvalidParamError("sofile");
         return NULL;
     }