update constraint for openstacksdk to new release 4.4.0

meta: version: 4.4.0
meta: team: OpenStackSDK
meta: diff-start: -
meta: series: epoxy
meta: branch: master
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: I17dac7ae401b953e1f26344afbe63288051314ab
meta: release:Code-Review+1: Artem Goncharov <artem.goncharov@gmail.com>
meta: release:Workflow+1: Dr. Jens Harbott <frickler@offenerstapel.de>
meta: release:Code-Review+2: Elod Illes <elod.illes@est.tech>
meta: release:Code-Review+2: Dr. Jens Harbott <frickler@offenerstapel.de>
Change-Id: I344fab802e53f1c768d7fd98f597e22c4c36cff6

Author: OpenStack Proposal Bot

upper-constraints.txt

@@ -455,7 +455,7 @@ cotyledon===2.0.0
 xattr===1.1.4
 systemd-python===235
 python-memcached===1.62
-openstacksdk===4.3.0
+openstacksdk===4.4.0
 infi.dtypes.nqn===0.1.0
 looseversion===1.3.0
 six===1.17.0