Fix dashboard workflow-row Playwright assertions

[Copilot]

The dashboard CI job failed because the workflow-row E2E test applied an array text assertion to a single <tr>, while Playwright expects an element collection for array expectations.

• E2E assertion targeting
  • Target the row’s individual <td> cells before asserting ordered text values.

await expect(row.locator('td')).toContainText([
  'dashboard.yml',
  'githubnext',
  // ...
]);