Playwright grep docs using glob not regex

[MarcusElevait]

Documentation issue

• Reporting a typo
• Reporting a documentation bug
• Documentation improvement
• Documentation feedback

Is there a specific documentation page you are reporting?

https://nx.dev/nx-api/playwright#testing-applications

Additional context or description

The grep and grepInvert options for playwright are demanding regex not glob pattern.
So for example instead of --grep="**feat-a/**" it should be --grep="feat-a\/"