Minor fix for rule regex

[CR-OfirTal]

Summary of the Pull Request

Just adding a bracket to the regex

Changelog

fix: Dynamic .NET Compilation Via Csc.EXE - small regex fix
fix: Csc.EXE Execution Form Potentially Suspicious Parent - small regex fix

Example Log Event

Fixed Issues

SigmaHQ Rule Creation Conventions

• If your PR adds new rules, please consider following and applying these conventions

[github-actions]

Welcome @CR-OfirTal 👋

It looks like this is your first pull request on the Sigma rules repository!

Please make sure to read the SigmaHQ conventions document to make sure your contribution is adhering to best practices and has all the necessary elements in place for a successful approval.

Thanks again, and welcome to the Sigma community! 😃

[frack113]

Hi,
Thanks for the fix.
As the regex fix change the detection the field modified must be updated.