tempest 28.0.0 release

meta:version: 28.0.0
meta:diff-start: -
meta:series: xena
meta:release-type: release
meta:pypi: yes
meta:first: yes
meta:release:Author: Ghanshyam Mann <gmann@ghanshyammann.com>
meta:release:Commit: Ghanshyam <gmann@ghanshyammann.com>
meta:release:Change-Id: I5e3bec00a75a3213e0aab810a6e797f3e34d5d08
meta:release:Code-Review+2: Elod Illes <elod.illes@est.tech>
meta:release:Code-Review+1: Martin Kopec <mkopec@redhat.com>
meta:release:Code-Review+2: Hervé Beraud <herveberaud.pro@gmail.com>
meta:release:Workflow+1: Hervé Beraud <herveberaud.pro@gmail.com>
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