Update actions/setup-node action to v2

Dependency update (patch)

Author: renovate-bot

.github/workflows/publish-test.yml

@@ -28,7 +28,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Node.js version
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v2
       with:
         node-version: '${{ env.NODE_VERSION }}'
     - name: npm install, build, and test