ci: add arm64-darwin coverage using macos-14

Also, pin the x86_64-darwin test to macos-13. See flavorjones/ruby-c-extensions-explained#30 for more context. (cherry picked from commit 2a8d1e4)

Author: flavorjones

.github/workflows/ci.yml

@@ -544,7 +544,7 @@ jobs:
  plat:
  - "aarch64-linux"
  - "arm-linux"
- - "arm64-darwin" # github actions does not support this runtime as of 2022-12, but let's build anyway
+ - "arm64-darwin"
  - "x64-mingw-ucrt"
  - "x64-mingw32"
  - "x86-linux"
@@ -681,7 +681,7 @@ jobs:
  fail-fast: false
  matrix:
  ruby: ["3.0", "3.1", "3.2", "3.3"]
- runs-on: macos-latest
+ runs-on: macos-13
  steps:
  - uses: actions/checkout@v4
  with:
@@ -695,6 +695,26 @@ jobs:
  path: gems
  - run: ./scripts/test-gem-install gems
 
+ cruby-arm64-darwin-install:
+ needs: ["cruby-package"]
+ strategy:
+ fail-fast: false
+ matrix:
+ ruby: ["3.0", "3.1", "3.2", "3.3"]
+ runs-on: macos-14
+ steps:
+ - uses: actions/checkout@v4
+ with:
+ submodules: true
+ - uses: ruby/setup-ruby@v1
+ with:
+ ruby-version: "${{matrix.ruby}}"
+ - uses: actions/download-artifact@v4
+ with:
+ name: cruby-arm64-darwin-gem
+ path: gems
+ - run: ./scripts/test-gem-install gems
+
  cruby-x64-mingw32-install:
  needs: ["cruby-package"]
  strategy: