SDL_image: ci: use latest development sdl2 on macos (2c2b4)

SDL Commits
1 
From 2c2b4870fe035ab33afecafb40df6ec6a85596e1 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Mon, 5 Sep 2022 22:09:46 +0200
Subject: [PATCH] ci: use latest development sdl2 on macos

---
 .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 ab4902dc..152c3fc6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -58,10 +58,10 @@ jobs:
             libtool \
             ninja \
             pkg-config \
-            sdl2 \
             webp \
             zlib \
             ${NULL+}
+          brew install sdl2 --HEAD
     - name: Setup Linux dependencies
       if: runner.os == 'Linux'
       run: |