The Install.ps1 doesn't return OSArchitecture correctly for all Windows PowerShell Versions Correctly

What issue are you seeing?

The Install.ps1 is leveraging this to pull the OS Architecture
$architecture = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture

Under certain PowerShell configurations, that specific Property is filtered out, so it returns nothing and the script produces an error.

To ensure it returns properly across all PowerShell configurations. You should utilize this
$architecture = [System.Runtime.InteropServices.RuntimeInformation,mscorlib]::OSArchitecture.ToString().ToLower()

What steps can reproduce the bug?

Open PowerShell 7 or 5.1
Install-Module PSReadLine -force
Import-Module PSReadline
.\Install.ps1
Observe the error message that OSArchitecture doesn't exist on said object.

What is the expected behavior?

The script succeeds and doesn't produce an error

Additional information

_No response_