add workflow for e2e test

.github/workflows/e2e-test.yml

@@ -0,0 +1,40 @@
+name: E2E Test
+on:
+  pull_request:
+    paths:
+      - .github/workflows/e2e-test.yml
+      - src/**
+      - WebExample/**
+  merge_group:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+    paths:
+      - .github/workflows/e2e-test.yml
+      - src/**
+      - WebExample/**
+
+jobs:
+  e2e_test:
+    if: github.repository == 'Expensify/react-native-live-markdown'
+    runs-on: ubuntu-latest
+    concurrency:
+      group: e2e-test-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v4
+
+      - name: Use Node.js 18
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+
+      - name: Install node_modules
+        run: yarn install --immutable
+
+      - name: Run playwright tests
+        working-directory: WebExample
+        run: yarn test