This patch fixes a mismatch between the size of the column for a
consumer "name" in the database and the value being checked by the api
validator.
The maximum size in the database is 36 chars [1], so we must use that value
in the validator.
[1] https://opendev.org/openstack/barbican/src/branch/stable/xena/barbican/model/models.py#L826
Story: 2009672
Task: 43933
Change-Id: I76f075a94056aa65cd44fd1d7f5d4b24109b6ed1
(cherry picked from commit 31aa926175)
(cherry picked from commit 059b4a080a)
(cherry picked from commit c1204779b2)
06b4b32d20