docs: 웹 접근성 테스트 자동화 워크플로우 작성

.github/workflows/a11y-test.yml

@@ -0,0 +1,44 @@
+name: "a11y-test"
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - packages/wow-ui/src/**
+
+jobs:
+  interaction-and-accessibility:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 20.x
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v3
+        with:
+          version: 8
+          run_install: false
+
+      - name: Install Dependency
+        run: pnpm install --no-frozen-lockfile
+        working-directory: packages/wow-ui
+
+      - name: Install Playwright
+        run: pnpm install playwright --save-dev
+
+      - name: Build Storybook
+        run: pnpm build-storybook --quiet
+
+      - name: Serve Storybook and run tests
+        run: |
+          pnpm concurrently -k -s first -n "SB,TEST" -c "magenta,blue" \
+            "pnpm http-server storybook-static --port 6006 --silent" \
+            "pnpm wait-on tcp:6006 && pnpm test-storybook"
+