Publish version on NPM when release is published (#24)

.github/workflows/push_to_npm.yml

@@ -0,0 +1,54 @@
+name: "Release"
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  check-package-version:
+    name: Check package version and detect an update
+    runs-on: ubuntu-24.04
+    outputs:
+      committed-version: ${{ steps.check-package-version.outputs.committed-version }}
+      published-version: ${{ steps.check-package-version.outputs.published-version }}
+      is-new-version: ${{ steps.check-package-version.outputs.is-new-version }}
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2
+
+      - name: Check package version and detect an update
+        id: check-package-version
+        uses: PostHog/check-package-version@v2
+
+  release:
+    name: Publish release if new version
+    runs-on: ubuntu-24.04
+    needs: check-package-version
+    if: needs.check-package-version.outputs.is-new-version == 'true'
+    env:
+      COMMITTED_VERSION: ${{ needs.check-package-version.outputs.committed-version }}
+      PUBLISHED_VERSION: ${{ needs.check-package-version.outputs.published-version }}
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}
+
+      - name: Setup Yarn
+        uses: threeal/setup-yarn-action@v2.0.0
+
+      - name: Set up Node 18
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          registry-url: https://registry.npmjs.org
+
+      - name: Install package.json dependencies with yarn
+        run: yarn install
+
+      - name: Publish the package in the npm registry
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}