Deb package with Ubuntu 23.04

Summary

I followed the instructions here on XUbuntu 23.04
https://develop.openfoam.com/Development/openfoam/-/wikis/precompiled/debian

After this apt-get update complains:

E: The repository 'https://dl.openfoam.com/repos/deb lunar Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.

Possible fixes

This path exists, however the release codename is lunar not luna
https://dl.openfoam.com/repos/deb/dists/luna/

Workaround: change lunar to luna in /etc/apt/sources.list.d/openfoam.list