chore: use github action

.github/workflows/main.yml

@@ -0,0 +1,26 @@
+name: CI
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  ci:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: |
+      npm install -g codecov
+      npm install -g @liriliri/lsla
+      npm run ci
+      codecov --disable=gcov