python-heatclient 2.5.1 release

meta:version: 2.5.1
meta:diff-start: -
meta:series: yoga
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: Ieb79b38d315170d72f3499d7ca2b9b6891b848d0
meta:release:Code-Review+2: Hervé Beraud <herveberaud.pro@gmail.com>
meta:release:Code-Review+1: Rico Lin <ricolin@ricolky.com>
meta:release:Code-Review+2: Elod Illes <elod.illes@est.tech>
meta:release:Workflow+1: Elod Illes <elod.illes@est.tech>
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