Attempt to fix "npm ERR! code E404" on publish

Author: simonbrunel

.github/workflows/publish.yml

@@ -12,7 +12,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+          registry-url: https://registry.npmjs.org/
       - run: npm ci
       - run: node scripts/publish-to-npm.js
         env: