[BugFix] Fix signing release pipeline

[singhgss]

Overview/Summary

Fix signing part as modules are pre signed but ps1 files are not.

This PR fixes/adds/changes/removes

1. Fix signing part as modules are pre signed but ps1 files are not.

Breaking Changes

N/A

Testing Evidence

N/A

Please provide any testing evidence to show that your Pull Request works/fixes as described and planned (include screenshots, if appropriate).

As part of this Pull Request I have

• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated relevant and associated documentation.
• Ensure PowerShell module versions have been updated (manually or with the ./tools/Update-ModuleVersions.ps1 script)