2024-02-27 Remove Murano from 2024.1 Release

The Technical Committee recently identified that the Murano project is inactive and has critical bugs which make it unsuitable for use in production in its current form. However, the current policy around Emerging and inactive projects only permits a project to be removed from the release if identified as inactive before milestone-2.

This TC resolution instructs the releases team to cease release activities for Murano for the 2024.1 release. It shall remain excluded from OpenStack releases until CI is fixed, all known security issues are resolved, and there is maintainer activity consistant with a healthy OpenStack project.