Stop Somona update? Remove macOS Installer of OpenCore?

I'm using macOS Ventura and don't want to upgrade to Sonoma.
However, by mistake, I clicked to update the Ventura to Somona.
I only realized when the message appeared that macOS would restart.
In OpenCore I didn't let macOS Intaller enter and continued with Ventura.
But in OpenCore the macOS Installer keeps appearing.

Please:
How do I remove the macOS Installer from OpenCore Boot Mwenu?
Where are the update files so I can delete them?
Any tips?
Thank you very much.

submitted by /u/webipsum
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