better publishing built files.

.github/workflows/npm-publish.yml

@@ -1,8 +1,8 @@
 name: publish npm package
 
 on:
-  release:
-    types: [created]
+  push:
+    tags: [v*]
 
 jobs:
   publish-npm:
@@ -11,8 +11,9 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
-          registry-url: https://registry.npmjs.org/
+          node-version: 18
+      - run: yarn --ignore-engines
+      - run: node build.js
       - run: npm publish
         env:
-          NODE_AUTH_TOKEN: ${{secrets.npm_token}}
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}