build: add semantic-release action

Author: rigor789

.github/workflows/semantic-release.yml

@@ -0,0 +1,23 @@
+name: Semantic Release CI
+
+on:
+  push:
+    branches:
+    - master
+    
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+      run: |
+        npm install
+        npm run semantic-release --if-present
+      env:
+        CI: true
+        GH_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        NPM_TOKEN: ${{secrets.NPM_TOKEN}}