ci: use node LTS in workflows

Author: mstruebing

.github/workflows/deploy-docs.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '14.x'
+          node-version: '20'
       # Pre-check to validate that versions match between package.json
       # and package-lock.json. Needs to run before npm install
       - name: Validate package.json and package-lock.json versions

.github/workflows/generate-javascript.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
       - name: Generate Openapi
         run: |
           echo "export KUBERNETES_BRANCH=${{ github.event.inputs.kubernetesBranch }} >> ./settings"