Use Node 18

Use Node 18 instead of 16.

Author: martincostello

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v3
       with:
-        node-version: '16.x'
+        node-version: '18.x'
 
     - name: Install packages
       run: |