ci : fix ios-xcode-build (#15324)

* fix ios-xcode-build

* use xcode-select with fixed version

* switch to macos-15 to get xcode 16.4

.github/workflows/build.yml

@@ -1113,6 +1113,11 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Setup Xcode
+        uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: latest-stable
+
       - name: Build
         id: cmake_build
         run: |