net - identity - tests pipeline has consistent failures because test resources cannot be deployed

[m-redding]

See pipeline history here: https://dev.azure.com/azure-sdk/internal/_build?definitionId=1646&_a=summary

This pipeline has been failing since August 27th.

It appears to be some kind of PowerShell error:

Get-Member: /mnt/vss/_work/1/s/sdk/identity/test-resources-pre.ps1:32
Line |
32 | … ersion = $patchVersions | Get-Member -MemberType NoteProperty | Selec …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| You must specify an object for the Get-Member cmdlet.
##[error]PowerShell exited with code '1'.

This was a blocker for me to be able to use this pipeline to validate changes in #46637