Prefetch neutron-tempest-plugin

This change makes CI job use prefetched neutron-tempest-plugin codes
instead of cloning codes from git.

Change-Id: I8d0d0cffb0a554a3322a152f5c1a6d635f14e734

run_tests.sh

@@ -323,7 +323,12 @@ if uses_debs; then
   # TODO(tobias-urdin): We must have the neutron-tempest-plugin to even test Neutron, is also required by
   # vpnaas and dynamic routing projects.
   $SUDO apt install -y python3-pip
-  git clone https://opendev.org/openstack/neutron-tempest-plugin /tmp/openstack/neutron-tempest-plugin
+
+  if [ -d /home/zuul/src/opendev.org/openstack/neutron-tempest-plugin ]; then
+    cp -R /home/zuul/src/opendev.org/openstack/neutron-tempest-plugin /tmp/openstack/neutron-tempest-plugin
+  else
+    git clone https://opendev.org/openstack/neutron-tempest-plugin /tmp/openstack/neutron-tempest-plugin
+  fi
   pushd /tmp/openstack/neutron-tempest-plugin
   $SUDO pip3 install .
   popd

zuul.d/base.yaml

@@ -48,6 +48,7 @@
       - openstack/puppet-watcher
       - openstack/puppet-zaqar
       - openstack/tempest
+      - openstack/neutron-tempest-plugin
 
 - job:
     name: puppet-openstack-integration-run-base