Update test.yml

Author: fulldecent

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup Xcode version
         uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: '15.4'
+          xcode-version: '15.2'
 
       - name: Build for macOS
         run: swift build