tripleo-ci-centos-8-undercloud-upgrade fails for undercloud sanity check

Noticed at:

https://923bc5148dda411c2aaa-9c42d2270cbecd27e059cd3a5f61b2fe.ssl.cf5.rackcdn.com/828212/2/check/tripleo-ci-centos-8-undercloud-upgrade/a8d64d9/logs/quickstart_install.log

2022-02-10 06:24:11 | Could not load 'alarming capabilities list': module 'pyparsing' has no attribute 'operatorPrecedence'
2022-02-10 06:24:12 | /usr/lib64/python3.6/site-packages/_yaml/__init__.py:23: DeprecationWarning: The _yaml extension module is now located at yaml._yaml and its location is subject to change. To use the LibYAML-based parser and emitter, import from `yaml`: `from yaml import CLoader as Loader, CDumper as Dumper`.
2022-02-10 06:24:12 | DeprecationWarning
2022-02-10 06:24:12 | public endpoint for orchestration service in regionOne region not found
2022-02-10 06:24:13 | ++ local status=1
2022-02-10 06:24:13 | ++ '[' 1 -ne 0 ']'
2022-02-10 06:24:13 | ++ echo 'error with openstack'
2022-02-10 06:24:13 | error with openstack
2022-02-10 06:24:13 | +++ date +%s
2022-02-10 06:24:13 | ++ generate-subunit 1644474253 10 fail openstack_stack_list
2022-02-10 06:24:13 | /home/zuul/undercloud-sanity-check.sh: line 34: generate-subunit: command not found
2022-02-10 06:24:13 | ++ script_return_value=1
2022-02-10 06:24:13 | ++ return 1

After https://review.opendev.org/c/openstack/tripleo-heat-templates/+/827955 that disables installed heat by default in wallaby, featureset50 used for undercloud upgrade job does not install heat, but the sanity check still expects orchestration endpoint.