feat: set up CI auto publish

.github/workflows/publish.yml

@@ -0,0 +1,30 @@
+name: Publish to npm 🚀
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - package.json
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Publish to npm
+        run: npm publish --access public