ci(action): add jest coverage action

Author: wopian

.github/workflows/jest.yml

@@ -0,0 +1,14 @@
+name: CI
+on: [ push, pull_request ]
+jobs:
+  jest:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Jest Coverage
+      uses: mattallty/jest-github-action@v1
+      continue-on-error: true
+      with:
+        changes-only: true
+        test-command: 'yarn test:coverage'
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}