update constraint for oslo.utils to new release 8.1.0

meta: version: 8.1.0
meta: team: oslo
meta: diff-start: -
meta: series: epoxy
meta: branch: master
meta: release-type: release
meta: pypi: yes
meta: first: no
meta: release:Author: Hervé Beraud <hberaud@redhat.com>
meta: release:Commit: Hervé Beraud <hberaud@redhat.com>
meta: release:Change-Id: I98efc9132fb4ff7a2ac8cfc73123d55984a3b403
meta: release:Code-Review+2: Elod Illes <elod.illes@est.tech>
meta: release:Code-Review+2: Thierry Carrez <thierry@openstack.org>
meta: release:Code-Review+1: Daniel Bengtsson <dbengt@redhat.com>
meta: release:Workflow+1: Thierry Carrez <thierry@openstack.org>
Change-Id: I35b5c7666da111ae7ccdda118aacd87825930edb

Author: OpenStack Proposal Bot

upper-constraints.txt

@@ -579,7 +579,7 @@ python-linstor===1.24.0
 filelock===3.17.0
 python-tackerclient===2.3.0
 python-heatclient===4.1.0
-oslo.utils===8.0.0
+oslo.utils===8.1.0
 requests-kerberos===0.15.0
 itsdangerous===2.2.0
 XStatic-jquery-ui===1.13.0.1