We should be able to set the tox work dir in the job definition.
Also, updates the files matcher so changes to the jobs cause them
to run.
Change-Id: I519a5257bb3806169ee78dee9ac6ae92d282a889
Convert the existing legacy-cross-* jobs over to the
new cross-check-job.
Adds a small bump to upper-constraints in order to test
the success of this review.
Co-Authored-By: Dirk Mueller <dirk@dmllr.de>
Change-Id: Iba6a025e3a10185ad1d8217244b967713cace3f6