[BUG] spns should be removed by clean-up script

[elenaterenzi]

Description

• The current clean-up script does not remove all SPNs. In particular SPNs created for ADF and storage are not deleted. The problem seems to be that the app registration is created without owner.
• potentially, when clean-up is executed with Deployment ID, we should remove the "owned by you" filter and just filter for name.

Expected Behavior

• All SPNs, specifically those with prefix mdwdops-stor and mdwdops-adf SPNs, should be deleted.

Reproduce

1. Deploy once
2. execute clean-up
3. after clean-up completes the spns will still be in Entra see screenshot:

Additional Context

[bsherwin]

Here's what I used to clean up the "soft deleted" accounts:

Get-AzureADDeletedApplication -all 1 | ForEach-Object { Remove-AzureADdeletedApplication -ObjectId $_.ObjectId }