Add a workaround for openSUSE

They keep shipping broken bundled packages in their venv module.
While we may want to eventually deprecate openSUSE support, provide
a work around to unbreak people.

Change-Id: Ib5c1730f5325e726bf3aef164cfaef01ad4c7a13
Story: #2008591
Task: #41747

releasenotes/notes/opensuse-pip-f708b89d30557f0a.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Works around `broken setuptools in virtual environments on openSUSE Leap
+    <https://storyboard.openstack.org/#!/story/2008591>`_.

scripts/install-deps.sh

@@ -141,6 +141,11 @@ EOF
 
 export PIP_OPTS="--upgrade-strategy only-if-needed"
 
+if [[ $OS_FAMILY == "Suse" ]]; then
+    # https://storyboard.openstack.org/#!/story/2008591
+    ${PIP} install -U setuptools
+fi
+
 echo "Installing bindep"
 ${PIP} install bindep