chore: add release action

Author: antfu

.github/workflows/release.yml

@@ -0,0 +1,21 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+          registry-url: https://registry.npmjs.org/
+      - run: npx conventional-github-releaser -p angular
+        env:
+          CONVENTIONAL_GITHUB_RELEASER_TOKEN: ${{secrets.GITHUB_TOKEN}}