ci(macos): add macOS CI test config

Author: scop

.github/workflows/ci.yaml

@@ -107,3 +107,11 @@ jobs:
           GH_TOKEN: ${{github.token}}
           RELEASE_PLEASE_TAG_NAME: ${{steps.release.outputs.tag_name}}
         if: steps.release.outputs.release_created
+
+  distcheck-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - run: env PYTESTFLAGS=--verbose test/macos-script.sh