ci: add workflow to update e2e snapshots

Author: ochafik

.github/workflows/update-snapshots.yml

@@ -0,0 +1,47 @@
+name: Update E2E Snapshots
+
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: 'Branch to update snapshots on'
+        required: true
+        default: 'main'
+
+permissions:
+  contents: write
+
+jobs:
+  update-snapshots:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.inputs.branch }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - uses: astral-sh/setup-uv@v5
+
+      - run: npm ci
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Update snapshots
+        run: npx playwright test --update-snapshots --reporter=list
+
+      - name: Commit updated snapshots
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add tests/e2e/**/*.png
+          git diff --staged --quiet || git commit -m "chore: update e2e snapshots [skip ci]"
+          git push