Refresh 2023.2 -> 2024.1 which will impact all charms, so we
should not need to pre-seed the edge channel before this works.
Refresh 23.09 -> 24.03 for OVN charms.
Option sql_connection is removed form 2024.1 release [1]
Use below snippet for magnum-k8s conf template
[database]
connection = <>
Update horizon local_settings.py.j2 template
[1] https://docs.openstack.org/releasenotes/oslo.db/en_GB/2024.1.html
Mark tempest test as non-voting as its currently unstable.
Change-Id: I4e277a4c5e438e2f2112a167b0f3050c1526cd0a
42e8bc6e42