#1 Move documentation from Confluence to Git

update Node.js and setup-node action

Author: oliverlietz

.github/workflows/documentation.yml

@@ -10,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
       - run: npm i antora @antora/lunr-extension
       - run: npx --fetch antora antora-playbook.yml
       - uses: peaceiris/actions-gh-pages@v3