Added Admin CI test matrix

refs b0a776fd25

- this ports over the test that was delete in the workflow file in the
  referenced commit

.github/workflows/test.yml

@@ -318,6 +318,42 @@ jobs:
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
 
+  test:
+    runs-on: ubuntu-18.04
+    if: github.event_name == 'push' || (github.event_name == 'pull_request' && !startsWith(github.head_ref, 'renovate/'))
+    strategy:
+      matrix:
+        browser: ["Firefox", "Chrome"]
+    name: Admin - ${{ matrix.browser }}
+    env:
+      MOZ_HEADLESS: 1
+      JOBS: 1
+      CI: true
+      COVERAGE: true
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: "14.17.0"
+
+      - run: yarn
+      - run: yarn test
+        working-directory: ghost/admin
+        env:
+          BROWSER: ${{ matrix.browser }}
+
+      # Merge coverage reports and upload
+      - run: yarn ember coverage-merge
+        working-directory: ghost/admin
+      - uses: codecov/codecov-action@v3
+
+      - uses: daniellockyer/action-slack-build@master
+        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
+        with:
+          status: ${{ job.status }}
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+
   canary:
     runs-on: ubuntu-18.04
     needs: [lint, migrations, unit-tests, database-tests]