Update TOX_CONSTRAINTS_FILE for stable/2024.1

Update the URL to the upper-constraints file to point to the redirect
rule on releases.openstack.org so that anyone working on this branch
will switch to the correct upper-constraints list automatically when
the requirements repository branches.

Until the requirements repository has as stable/2024.1 branch, tests will
continue to use the upper-constraints list on master.

Change-Id: I1371b181b1042a25a43686566952cdc6a1c23bef

Author: openstackadmin

tox.ini

@@ -23,7 +23,7 @@ passenv = TRACE_FAILONLY
           TOX_ENV_SRC_MODULES
 usedevelop = True
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.1}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt
   hacking>=6.1.0,<6.2.0 # Apache-2.0
@@ -151,7 +151,7 @@ commands = {posargs}
 # upper constraints will not be used for deps listed in requirements.txt
 # and may cause issues
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2024.1}
   -r{toxinidir}/doc/requirements.txt
   -r{toxinidir}/requirements.txt
 commands = sphinx-build -W -b html doc/source doc/build/html