Merge pull request #31 from AkihiroSuda/dev

CI: add macos-12 and macos-13

Author: AkihiroSuda

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     name: Integration tests
     strategy:
       matrix:
-        platform: [macos-11]
+        platform: [macos-11, macos-12, macos-13]
     runs-on: ${{ matrix.platform }}
     timeout-minutes: 40
     steps: