Add xenial build for python-backports.ssl-match-hostname pkg

Closes-Bug: PROD-18157

Change-Id: I33b2bd36f60a84fc9bb3d21f77d624369083e1d6
diff --git a/jenkins/client/job/debian/packages/extra.yml b/jenkins/client/job/debian/packages/extra.yml
index 61d7ee2..0a21a55 100644
--- a/jenkins/client/job/debian/packages/extra.yml
+++ b/jenkins/client/job/debian/packages/extra.yml
@@ -205,6 +205,10 @@
               dist: xenial
               build: pipeline
               branch: debian/xenial
+            - package: python-backports.ssl-match-hostname
+              dist: xenial
+              build: pipeline
+              branch: debian/xenial
           template:
             type: workflow-scm
             concurrent: false