👷 Add CI for publishing package (#3)

.github/workflows/release.yml

@@ -0,0 +1,35 @@
+name: Publish package
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Get tag version
+        if: startsWith(github.ref, 'refs/tags/')
+        id: get_tag_version
+        run: echo TAG_VERSION=${GITHUB_REF/refs\/tags\//} >> $GITHUB_OUTPUT
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v1
+        with:
+          deno-version: v1.x
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20.x'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Build npm package
+        run: deno task build:npm ${{steps.get_tag_version.outputs.TAG_VERSION}}
+
+      - name: Publish npm package
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+            NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: cd npm && npm publish