Workflow update

Author: gstepniewski-google

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 20
       - name: Install
         run: |
           npm ci --no-optional