ci: add manual release workflow for GitHub Releases

Author: euxx

.github/workflows/release.yml

@@ -0,0 +1,42 @@
+name: Release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  release:
+    name: Build and Release
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Read version from package.json
+        id: version
+        run: echo "version=$(node -p "require('./package.json').version")" >> $GITHUB_OUTPUT
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run checks
+        run: npm run ci
+
+      - name: Build packages
+        run: npm run build
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: v${{ steps.version.outputs.version }}
+          name: v${{ steps.version.outputs.version }}
+          generate_release_notes: true
+          files: |
+            dist/github-notifier-pro-chrome.zip
+            dist/github-notifier-pro-firefox.zip