Fix openstack-tox jobs for DC repo

Bindep updates are required to get cffi to install on
ubuntu-jammy.

This update adds a bindep.txt to ensure Zuul will install
the required third party entries

The Zuul upper-constraints env variable declaration needed
to be added to tox.ini otherwise an older constraints
was being used which does not work with newer
versions of python.

Partial-Bug: #1997255

Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: I7e4b032f9c91bfaab33fec49f23613004101f44b

bindep.txt

@@ -0,0 +1,10 @@
+# This is a cross-platform list tracking distribution packages needed for install and tests;
+# see https://docs.openstack.org/infra/bindep/ for additional information.
+
+libffi-dev [platform:dpkg]
+libldap2-dev [platform:dpkg]
+libxml2-dev [platform:dpkg]
+libxslt1-dev [platform:dpkg]
+libsasl2-dev [platform:dpkg]
+libffi-devel [platform:rpm]
+python3-all-dev [platform:dpkg]

tox.ini

@@ -5,7 +5,7 @@ skipsdist = True
 
 [testenv]
 install_command = pip install -v -v -v \
-    -c https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt \
+    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt} \
     {opts} {packages}
 setenv =
     VIRTUAL_ENV={envdir}