chore: bump x86 mac ci

.github/workflows/build-test.yml

@@ -812,7 +812,7 @@ jobs:
         settings:
           - { target: 'x86_64-unknown-linux-gnu', os: 'ubuntu-latest' }
           - { target: 'aarch64-unknown-linux-gnu', os: 'ubuntu-24.04-arm' }
-          - { target: 'x86_64-apple-darwin', os: 'macos-13' }
+          - { target: 'x86_64-apple-darwin', os: 'macos-15-intel' }
           - { target: 'aarch64-apple-darwin', os: 'macos-latest' }
           - { target: 'x86_64-pc-windows-msvc', os: 'windows-latest' }
           - { target: 'aarch64-pc-windows-msvc', os: 'windows-11-arm' }