SDL_image: ci: disable building the macos tests

SDL Commits
1 
From 01e3cc0fae1214ec7fedabe45d0262b837973d3d Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Mon, 5 Sep 2022 22:05:24 +0200
Subject: [PATCH] ci: disable building the macos tests

This is done because the SDL2::SDL2test target of SDL2 2.24.0, when built with autotools
is broken.
---
 .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..702b0fe0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,7 +23,7 @@ jobs:
         - { name: Linux (CMake),                os: ubuntu-20.04,   shell: sh,  cmake: '-DSDL2IMAGE_VENDORED=ON -GNinja', shared: 1, static: 0 }
         - { name: 'Linux (CMake, static)',      os: ubuntu-20.04,   shell: sh,   cmake: '-DSDL2IMAGE_VENDORED=ON -DBUILD_SHARED_LIBS=OFF -GNinja', shared: 0, static: 1 }
         - { name: Macos (autotools),            os: macos-latest,   shell: sh, shared: 1, static: 1 }
-        - { name: Macos (CMake),                os: macos-latest,   shell: sh,   cmake: '-DSDL2IMAGE_VENDORED=ON -GNinja', shared: 1, static: 0 }
+        - { name: Macos (CMake),                os: macos-latest,   shell: sh,   cmake: '-DSDL2IMAGE_VENDORED=ON -DSDL2IMAGE_TESTS=OFF -GNinja', shared: 1, static: 0 }
 
     steps:
     - name: Set up MSYS2