[ci] Update Xcode version to 15.2 to fix linker bug

Author: chris-durand

.github/workflows/macos.yml

@@ -7,6 +7,9 @@ jobs:
     runs-on: macos-13
 
     steps:
+      - uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: '15.2'
 
       - name: Setup environment - Brew tap
         run: |