This change adds
* default pages for next release, 2024.1 Caracal
* 2023.2 Bobcat project data so that index pages will be generated
It still keeps 2023.2 Bobcat in development phase. A future change
will transition it to 'maintained' at release time.
The patch content was setup by following the www page release
guideline [1].
[1] https://docs.openstack.org/doc-contrib-guide/release/taskdetail.html#update-www-pages-for-end-of-release
Change-Id: Idd6f8943d16d104a0037bbfc81e3a945135ed4a4
48ac7df0c2