build: test macos-13 on GitHub actions

We are in the process of updating macOS to version 13 in the
Jenkins CI, but unfortunately this is taking longer than expected.
Add it to the GitHub actions test matrix so that we have some coverage.

Refs: nodejs/build#3686
PR-URL: #56307
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: targos

.github/workflows/test-macos.yml

@@ -38,7 +38,11 @@ permissions:
 jobs:
   test-macOS:
     if: github.event.pull_request.draft == false
-    runs-on: macos-14
+    strategy:
+      fail-fast: false
+      matrix:
+        macos-version: [macos-13, macos-14]
+    runs-on: ${{ matrix.macos-version }}
     env:
       CC: sccache gcc
       CXX: sccache g++