SDL_helloworld: ci: use main branch from setup-sdl (v1 branch does not understand newer VERSION macro)

SDL Commits
1 
From 0114ff15cf6ade6d8460fd8fca569e5dc5ed0c96 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Wed, 22 May 2024 04:00:23 +0200
Subject: [PATCH] ci: use main branch from setup-sdl (v1 branch does not
 understand newer VERSION macro)

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d413e6f..32637e5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
     steps:
     - name: Set up SDL
       id: sdl
-      uses: libsdl-org/setup-sdl@v1
+      uses: libsdl-org/setup-sdl@main
       with:
         version: sdl3-head
     - name: Get project sources