focus on fixing macos15-intel

Author: gletort

.github/workflows/cross-platform-envtest.yml

@@ -23,9 +23,8 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v4
       - name: Set up Xcode
-        uses: maxim-lobanov/setup-xcode@v1
-        with:
-          xcode-version: '16.2'
+        if: runner.os == 'Windows'
+        run: brew install xcode
 
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v4