update reveal.js

scripts/reveal.js/.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Tests
+
+on:
+  - push
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - 18
+          - 20
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - run: npm install
+      - run: npm run build --if-present
+      - run: npm test
+        env:
+          CI: true