[nightly macOS]: bump xcode to 16.2

Author: zisoft

.github/workflows/nightly.yml

@@ -289,7 +289,7 @@ jobs:
       matrix:
         build:
           - { os: macos-13, xcode: 15.2, deployment: 13.5 } # LLVM16, x86_64
-          - { os: macos-14, xcode: 16.1, deployment: 14.0 } # LLVM16, arm64
+          - { os: macos-14, xcode: 16.2, deployment: 14.0 } # LLVM16, arm64
         compiler:
           - { compiler: XCode,   CC: cc, CXX: c++ }
         btype: [ Release ]