Merge pull request #44 from dpogue/mac-ci-fix

macOS 12 runner for GitHub Actions is deprecated

Author: zrax

.github/workflows/ci-build.yml

@@ -43,9 +43,9 @@ jobs:
     strategy:
       matrix:
         cfg:
-          - { os: macOS-12, xcode: Xcode_13.4.1 }
           - { os: macOS-13, xcode: Xcode_14.3.1 }
           - { os: macOS-14, xcode: Xcode_15.3 }
+          - { os: macOS-15, xcode: Xcode_16.2 }
     steps:
       - uses: actions/checkout@v4
         with: