Shorten IBM storage attribute name to fit Coldfront's 50 character limit

[QuanMPhm]

Coldfront sets a 50 char limit on attribute names. See: https://github.com/ubccr/coldfront/blob/627e9ea957262b3bfcb37e6a19da3d8271a497f1/coldfront/core/allocation/models.py#L425

/opt/venv/lib/python3.12/site-packages/django_q/conf.py:8: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. R
efrain from using this package or pin to Setuptools<81.
  import pkg_resources
Traceback (most recent call last):
  File "/opt/venv/lib/python3.12/site-packages/django/db/models/query.py", line 916, in get_or_create
    return self.get(**kwargs), False
           ^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/django/db/models/query.py", line 637, in get
    raise self.model.DoesNotExist(
coldfront.core.allocation.models.AllocationAttributeType.DoesNotExist: AllocationAttributeType matching query does not exist.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 89, in _execute
    return self.cursor.execute(sql, params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
psycopg2.errors.StringDataRightTruncation: value too long for type character varying(50)```