SDL API renaming: SDL_render.h

Fixes https://github.com/libsdl-org/SDL/issues/6883

test/teststreaming.c

@@ -115,7 +115,7 @@ void loop()
     UpdateTexture(MooseTexture);
 
     SDL_RenderClear(renderer);
-    SDL_RenderCopy(renderer, MooseTexture, NULL, NULL);
+    SDL_RenderTexture(renderer, MooseTexture, NULL, NULL);
     SDL_RenderPresent(renderer);
 
 #ifdef __EMSCRIPTEN__