ci: update workflows config.

.github/workflows/ci.yml

@@ -11,10 +11,10 @@ jobs:
       contents: write
       id-token: write
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           registry-url: 'https://registry.npmjs.org'
 
       - run: npm install
@@ -69,7 +69,7 @@ jobs:
 
       - run: cp -rp coverage/lcov-report ./www/build/lcov-report
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         if: github.ref == 'refs/heads/master'
         with:
           commit_message: ${{steps.tag_version.outputs.tag}} ${{ github.event.head_commit.message }}