chore: build with node 18 for ubuntu image (#768)

.github/workflows/azuresdkdrop.yml

@@ -33,10 +33,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           ref: main
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v1
         with:
-          node-version: 16.x
+          node-version: 18.x
 
       - run: npm ci
       - run: npm run build