Fix test error - Save with update_fields did not affect any rows.

[DonnieBLT]

Traceback (most recent call last):
File "/home/runner/.cache/pypoetry/virtualenvs/blt-yuw0N2NF-py3.11/lib/python3.11/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/work/BLT/BLT/blt/middleware/ip_restrict.py", line 153, in call
ip_record.save(update_fields=["agent", "count", "path"])
File "/home/runner/.cache/pypoetry/virtualenvs/blt-yuw0N2NF-py3.11/lib/python3.11/site-packages/django/db/models/base.py", line 891, in save
self.save_base(
File "/home/runner/.cache/pypoetry/virtualenvs/blt-yuw0N2NF-py3.11/lib/python3.11/site-packages/django/db/models/base.py", line 997, in save_base
updated = self._save_table(
^^^^^^^^^^^^^^^^^
File "/home/runner/.cache/pypoetry/virtualenvs/blt-yuw0N2NF-py3.11/lib/python3.11/site-packages/django/db/models/base.py", line 1135, in _save_table
raise DatabaseError("Save with update_fields did not affect any rows.")
django.db.utils.DatabaseError: Save with update_fields did not affect any rows.