In prepartion for upgrading this host, run jobs with a Jammy based
bridge.openstack.org.
Since this has a much later Python, it brings in a later version of
selenium when testing (used for screenshots) which has dropped some of
the APIs we use. Pin it to the old version; we will fix this in a
follow-on just to address one thing at a time
(I6a9d02bfc79b90417b1f5b3d9431f4305864869c).
Change-Id: If53286c284f8d25248abf4a1b2edd6951437dec2
34dc0f2679