Revise trigger file path to A1 docker and verify jobs

Repair pattern to ignore changes in docs/ and releases/ subdirectories,
to skip tox-ing and docker-ing when no Python code changes.  Previous
attempt had one too many negative-match ?! operator.

Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: I77566275a278663df84c4af26b8f347a5018c018