🔧 Update node version for docs build

Author: hpoepping

.github/workflows/deploy_docs.yml

@@ -10,15 +10,15 @@ on:
 
 jobs:
     deploy:
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-latest
         steps:
             - name: Checkout repo
               uses: actions/checkout@v2
 
-            - name: Use Node 16
+            - name: Use Node 20
               uses: actions/setup-node@v1
               with:
-                  node-version: 16
+                  node-version: 20
 
             - name: Build
               run: npm run build-docs