Windows Server 2019 generalized image support files Generalize.cmd doesn't work with oracle oci packer builder

#### Overview of the Issue

I am using the Packer Oracle OCI builder to create windows server 2019 custom images. I am using the generalized image support files. https://docs.oracle.com/en-us/iaas/Content/Compute/References/generalizedimage.htm#Windows_Generalized_Image_Support_Files. This was working earlier, but recently this has started failing with the following error

```
==> oracle-oci: Provisioning with powershell script: /tmp/powershell-provisioner299066530
oracle-oci:
oracle-oci: C:\Users\opc>C:\Windows\System32\Sysprep\sysprep.exe /generalize /oobe /quit /unattend:C:\Windows\Panther\unattend.xml
oracle-oci:
oracle-oci: C:\Users\opc>PowerShell.exe -ExecutionPolicy Unrestricted -File C:\Windows\Panther\Post-Generalize.ps1
oracle-oci: Transcript started, output file is C:\Windows\Panther\Post-Generalize.log
oracle-oci: Current CmdLine
oracle-oci:
oracle-oci:
oracle-oci: CmdLine : oobe\windeploy.exe
oracle-oci: PSPath : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\System\Setup
oracle-oci: PSParentPath : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\System
oracle-oci: PSChildName : Setup
oracle-oci: PSDrive : HKLM
oracle-oci: PSProvider : Microsoft.PowerShell.Core\Registry
oracle-oci:
oracle-oci: Updating CmdLine
oracle-oci: New CmdLine
oracle-oci: CmdLine : C:\Windows\Panther\Specialize.cmd
oracle-oci: PSPath : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\System\Setup
oracle-oci: PSParentPath : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\System
oracle-oci: PSChildName : Setup
oracle-oci: PSDrive : HKLM
oracle-oci: PSProvider : Microsoft.PowerShell.Core\Registry
oracle-oci:
oracle-oci: Transcript stopped, output file is C:\Windows\Panther\Post-Generalize.log
oracle-oci:
oracle-oci:
oracle-oci:
oracle-oci: C:\Users\opc>PowerShell.exe -ExecutionPolicy Unrestricted -Command "Start-Sleep -Seconds 20"
==> oracle-oci: Provisioning step had errors: Running the cleanup provisioner, if present...
```

#### Reproduction Steps

The following is the snippet, the powershell provisioning step fails now (it used to work earlier without issues)
```
"provisioners": [
{
"type": "ansible",
"playbook_file": "./playbook.yml",
"user": "opc",
"use_proxy": false,
"extra_arguments": ["-e", "ansible_winrm_server_cert_validation=ignore", "-vvvv"]
},
{
"type": "powershell",
"inline": [
"& C:\\Windows\\Panther\\Generalize.cmd",
"while($true) { $imageState = Get-ItemProperty HKLM:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Setup\\State | Select ImageState; if($imageState.ImageState -ne 'IMAGE_STATE_GENERALIZE_RESEAL_TO_OOBE') { Write-Output $imageState.ImageState; Start-Sleep -s 10 } else { break } }"
]
}
]
```

### Plugin and Packer version

From `packer version`
Packer v1.7.2

### Simplified Packer Buildfile

[template-gist](https://gist.github.com/codingarchitect/88a45b777497bf03cbe57e64368511b8)

### Operating system and Environment details

Host machine in packer is run is Ubuntu 20.04,
Packer Custom Image OS is Windows Server 2019

### Log Fragments and crash.log files
[log-gist](https://gist.github.com/codingarchitect/2e27d6ad4ee4457b748f7df080aefe42)

It is difficult to debug as sysprep renders the image unusable from remote.
Any pointers to what might be the issue.