Fix installation of winget modules for winget and git-clone

[DavidObando]

Whenever we run winget commandlets in our scripts, we always run them under powershell 7 (pwsh.exe) given its broader compatibility. However, during the installation of winget modules, we sometimes evaluate if the modules are installed under powershell 5 instead of the desired target of powershell 7. This diff fixes it to always target powershell 7.

[Copilot]

Pull Request Overview

This PR fixes the installation process of winget modules by ensuring that all commands run under PowerShell 7 (pwsh.exe) rather than PowerShell 5.

• Retrieve module information using pwsh.exe -Command to enforce the correct PowerShell version.
• Remove explicit required version parameters from installation commands.
• Add the -AllowPrerelease flag for the Microsoft.WinGet.Configuration module installation in the git-clone script.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
Tasks/winget/main.ps1	Updated module retrieval and installation commands to always use pwsh.exe and removed version requirements.
Tasks/git-clone/main.ps1	Updated module retrieval and installation commands, including the addition of the -AllowPrerelease flag for configuration.