feat: add release workflow

Author: alexpivtorak

.github/workflows/release.yml

@@ -0,0 +1,50 @@
+name: Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  release:
+    name: Prepare release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Build
+        run: npm run build
+
+      - name: Package files
+        run: |
+          mkdir release
+          cp -r dist release/
+          cp README.md release/
+          cp LICENSE release/
+          cp hacs.json release/
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: release
+          path: release/
+
+      - name: Upload to release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: |
+            dist/ha-mi-humidifier-card.js
+            dist/ha-mi-humidifier-card.js.map
+            dist/humidifier-1.png
+            hacs.json
+            README.md
+            LICENSE