Extension to custom buttons where:
1. the custom button runs an automate method through the queue (using MiqTask)
2. the customer-provided automate method stuff would do some potentially complex stuff and would return an URL (through SystemConsole model).
3. the UI opens browser window on that URL
as per https://github.com/ManageIQ/manageiq/pull/10118
Verified in 220.127.116.11