ci: test build macos arm on macos-14

Author: Minh141120

.github/workflows/menlo-build.yml

@@ -211,7 +211,7 @@ jobs:
           #   ccache-dir: 'C:\Users\ContainerAdministrator\AppData\Local\ccache'
           - os: "macos"
             name: "arm64"
-            runs-on: "macos-selfhosted-12-arm64"
+            runs-on: "macos-14"
             cmake-flags: "-DCMAKE_BUILD_RPATH=\"@loader_path\" -DGGML_METAL_EMBED_LIBRARY=OFF -DBUILD_SHARED_LIBS=ON DGGML_METAL_USE_BF16=ON"
             run-e2e: false
             vulkan: false