chore: auto-publish package to npm after release (#511)

Author: targos

.github/workflows/release-please.yml

@@ -8,9 +8,25 @@ on:
 jobs:
   release-please:
     runs-on: ubuntu-latest
+    outputs:
+      release_created:  ${{ steps.release.outputs.release_created }}
     steps:
       - uses: google-github-actions/release-please-action@v3
+        id: release
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           release-type: node
           package-name: node-core-utils
+  npm-publish:
+    needs: release-please
+    if: ${{ needs.release-please.outputs.release_created }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16.x
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}