ci: add new jobs for deploy storybook

.github/workflows/frontend.yml

@@ -3,6 +3,8 @@ name: Frontend CI
 on:
   pull_request:
     types: [opened, reopened, edited, synchronize]
+  push:
+    branches: master
 
 jobs:
   build:
@@ -40,3 +42,25 @@ jobs:
           yarn test
         env:
           CI: true
+
+  jobs:
+    deoloy-storybook:
+      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+      runs-on: ubuntu-latest
+
+      strategy:
+        matrix:
+          node-version: [12.x]
+      steps:
+        - uses: actions/checkout@v2
+        - name: build storybook
+          if: github.event_name === 'push' && github.ref == 'refs/heads/master'
+          run: |
+            yarn build-storybook
+        - name: deploy gh-pages
+          if: github.event_name === 'push' && github.ref == 'refs/heads/master'
+          uses: JamesIves/github-pages-deploy-action@3.4.2
+          with:
+            ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+            BRANCH: gh-pages
+            FOLDER: packages/core/storybook-static