build: add release workflow

Author: mob-sakai

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: release
+
+on:
+  push:
+    branches:
+      - beta
+      - main
+    tags:
+      - "!*"
+
+jobs:
+  release:
+    if: "! contains(github.event.head_commit.message, '[skip ci]') && ! contains(github.event.head_commit.message, '[ci skip]')"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Build
+        run: |
+          npm ci
+          npm run build
+
+      - name: Release
+        run: npm run release
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          GH_TOKEN: ${{ github.token }}