Fix node version in publish pipeline (#134)

Author: ckoopmann

.github/workflows/publish.yaml

@@ -32,6 +32,9 @@ jobs:
     needs: [build-and-test]
     steps:
       - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
       - name: copy env
         run: cp .env.default .env
       - name: install