chore: switch to a matrix for forks (#191)

Author: gagik

.github/workflows/code_health_fork.yaml

@@ -11,9 +11,14 @@ jobs:
   run-tests:
     name: Run MongoDB tests
     if: github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.head.repo.full_name != github.repository
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: GitHubSecurityLab/actions-permissions/monitor@v1
+        if: matrix.os != 'windows-latest'
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
@@ -24,7 +29,7 @@ jobs:
       - name: Run tests
         run: npm test
       - name: Upload test results
-        if: always()
+        if: always() && matrix.os == 'ubuntu-latest'
         uses: actions/upload-artifact@v4
         with:
           name: test-results