update constraint for openstacksdk to new release 0.55.1

meta: version: 0.55.1
meta: diff-start: -
meta: series: wallaby
meta: release-type: release
meta: pypi: yes
meta: first: no
meta: release:Author: Alfredo Moralejo <amoralej@redhat.com>
meta: release:Commit: Alfredo Moralejo <amoralej@redhat.com>
meta: release:Change-Id: Id542ffb6411ee01fff1b91a54d632833ced4395d
meta: release:Code-Review+2: Alan Pevec <alan.pevec@redhat.com>
meta: release:Code-Review+1: Artem Goncharov <artem.goncharov@gmail.com>
meta: release:Workflow+1: Alan Pevec <alan.pevec@redhat.com>
Change-Id: I0d3d108c82dcb65470e233d16ed52cbee7e47169

upper-constraints.txt

@@ -441,7 +441,7 @@ cotyledon===1.7.3
 xattr===0.9.7
 systemd-python===234
 python-memcached===1.59
-openstacksdk===0.55.0
+openstacksdk===0.55.1
 six===1.15.0
 dulwich===0.20.20
 dfs-sdk===1.2.27