Fix npm publish

Author: yorch

.github/workflows/npm-publish.yml

@@ -15,8 +15,7 @@ jobs:
       - uses: actions/setup-node@v2
         with:
           node-version: 14
-      - run: npm ci
-      - run: npm test
+      - run: yarn install --frozen-lockfile # Runs also lint and test
 
   publish-npm:
     needs: build
@@ -27,7 +26,7 @@ jobs:
         with:
           node-version: 14
           registry-url: https://registry.npmjs.org/
-      - run: npm ci
+      - run: yarn install --frozen-lockfile # Runs also lint and test
       - run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}