update node in workflow (#585)

Author: Arhell

.github/workflows/documentation.yaml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v6
         with:
-          node-version: '20.x'
+          node-version: '22.x'
       - name: Test Build
         run: |
           if [ -e yarn.lock ]; then
@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version: '22.x'
       - uses: webfactory/[email protected]
         with:
           ssh-private-key: ${{ secrets.GH_PAGES_DEPLOY }}