feat(CI): attempt to deploy storybook to s3

.github/workflows/pr-preview-deploy.yml

@@ -0,0 +1,22 @@
+name: PR Preview Deploy
+
+on:
+  workflow_run:
+    workflows: ['PR Preview Build']
+    types:
+      - completed
+
+jobs:
+  deploy:
+    name: Deploy
+    if: >
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'success'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: gravity-ui/preview-deploy-action@v2
+        with:
+          project: graph
+          github-token: ${{ secrets.GRAVITY_UI_BOT_GITHUB_TOKEN }}
+          s3-key-id: ${{ secrets.STORYBOOK_S3_KEY_ID }}
+          s3-secret-key: ${{ secrets.STORYBOOK_S3_SECRET_KEY }}