build: update macOS runner and Xcode

Xcode 16.4 will be required for Node.js 25.
macOS 15 is required for Xcode 16.4.

Refs: #58069
Co-authored-by: Yagiz Nizipli <[email protected]>
PR-URL: #59238
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: Ulises Gascón <[email protected]>
Reviewed-By: Jake Yuesong Li <[email protected]>

Author: targos

.github/workflows/test-macos.yml

@@ -30,7 +30,7 @@ concurrency:
 
 env:
   PYTHON_VERSION: '3.12'
-  XCODE_VERSION: '16.1'
+  XCODE_VERSION: '16.4'
   FLAKY_TESTS: keep_retrying
 
 permissions:
@@ -41,7 +41,7 @@ jobs:
     if: github.event.pull_request.draft == false
     strategy:
       fail-fast: false
-    runs-on: macos-14
+    runs-on: macos-15
     env:
       CC: sccache gcc
       CXX: sccache g++