Merge "Update TOX_CONSTRAINTS_FILE for stable/victoria" into stable/victoria

tox.ini

@@ -7,7 +7,7 @@ envlist = pep8,py37,tht
 basepython = python3
 usedevelop = True
 deps =
-       -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
+       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/victoria}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = python setup.py testr --slowest --testr-args='{posargs}'