CI: Temporary setuptools pin

Temporarily pin setuptools to an older version. While not great,
until we have consensus we're in a not good state for CI.

Change-Id: I15cc92846670af80ff487c8035cf2e365437473b
Signed-off-by: Julia Kreger <juliaashleykreger@gmail.com>
(cherry picked from commit 2ccb263)

Author: juliakreger

tox.ini

@@ -35,6 +35,7 @@ deps =
     bashate~=2.1.0 # Apache-2.0
     pycodestyle>=2.0.0,<3.0.0 # MIT
     doc8~=1.1.0 # Apache-2.0
+    setuptools<81.0.0
 allowlist_externals = bash
                       {toxinidir}/tools/run_bashate.sh
 commands =