Entering freeze for libvirt-6.7.0

[Jiri Denemark]

I have just tagged v6.7.0-rc1 in the repository and pushed signed
tarballs and source RPMs to https://libvirt.org/sources/

The is the first release using meson and ninja which replaced autotools
and make so please give the release candidate some testing and in case
you find a serious issue which should have a fix in the upcoming
release, feel free to reply to this thread to make sure the issue is
more visible.

If you have not done so yet, please update NEWS.rst to document any
significant change you made since the last release.

Thanks,

Jirka