Merge tag '12.0.0' into debian/zed

oslo.db 12.0.0 release

meta:version: 12.0.0
meta:diff-start: -
meta:series: zed
meta:release-type: release
meta:pypi: yes
meta:first: no
meta:release:Author: Elod Illes <elod.illes@est.tech>
meta:release:Commit: Elod Illes <elod.illes@est.tech>
meta:release:Change-Id: Ifa18eab0f4fc2f2ac728efc5e22950b41834bc89
meta:release:Code-Review+2: Hervé Beraud <herveberaud.pro@gmail.com>
meta:release:Code-Review+2: Elod Illes <elod.illes@est.tech>
meta:release:Workflow+1: Elod Illes <elod.illes@est.tech>