Automatically create GH release for each tag

.github/workflows/release.yaml

@@ -0,0 +1,26 @@
+name: Create release
+
+on:
+  push:
+    tags:
+    - 'v*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+
+      - run: npm ci
+
+      - run: npm pack
+
+      - uses: ncipollo/release-action@v1
+        with:
+          artifacts: "cwebp-*.tgz"
+          generateReleaseNotes: true

package.json

@@ -20,7 +20,7 @@
     "clean": "rm -rf lib/ cwebp-*.tgz",
     "test": "mocha test/*.coffee",
     "list-files": "tar -tzf `npm pack | tail -n 1`",
-    "prepublish": "npm run clean && coffee -o lib/ -cb src/",
+    "prepack": "npm run clean && coffee -o lib/ -cb src/",
     "postpublish": "git push origin +HEAD:latest --follow-tags"
   },
   "engines": {