The previous ansible step is already fetching the complete charm name.
Adding `.*$` is creating issues as charm sharing a similar name will be
slurped by this job, making the publication process work twice.
Example of a charm sharing a similar name: cinder-volume and
cinder-volume-ceph.
Change-Id: I3978fdd2f91534f088c02218e9569cf5626abcaf
Signed-off-by: Guillaume Boutry <guillaume.boutry@canonical.com>