Automation "call-webhook" action does not render correct "work_pool" data

[EmilRex]

Bug summary

1. Create a webhook block pointing to somewhere you can see the incoming calls (I used https://webhook.site/)
2. Create an automation that triggers based on Work pool status with a call-webhook action that uses your webhook block
3. Leave the default body:

{
  "message": "Name: {{ work_pool.name }}\nStatus: {{ work_pool.status }}\nURL: {{ work_pool|ui_url }}"
}

4. Trigger the automation
5. Observe that the values are none:

{
  "message": "Name: \nStatus: \nURL: None"
}

Doing the same thing with a notification action does render the correct "work_pool" data.

Version info (prefect version output)

Cloud - N/A

Additional context

No response