[Bug]: Schema caching is broken

[decoupca]

Ansible NetBox Collection version

v3.13.0

Ansible version

ansible [core 2.15.1]
  config file = /Users/decoupca/code/ansible/ansible-dev.cfg
  configured module search path = ['/Users/decoupca/code/ansible/library']
  ansible python module location = /Users/decoupca/code/ansible/venv/lib/python3.11/site-packages/ansible
  ansible collection location = /Users/decoupca/.ansible/collections:/usr/share/ansible/collections
  executable location = /Users/decoupca/code/ansible/venv/bin/ansible
  python version = 3.11.4 (main, Jun 20 2023, 17:23:00) [Clang 14.0.3 (clang-1403.0.22.14.1)] (/Users/decoupca/code/ansible/venv/bin/python3.11)
  jinja version = 3.1.2
  libyaml = True

NetBox version

v3.5.6

Python version

3.11

Steps to Reproduce

Use nb_inventory plugin to run a playbook more than once. The play doesn't matter, only that nb_inventory is used as an inventory source.

Expected Behavior

On the first run, nb_inventory fetches the API schema at api/schema/?format=json and caches it to ~/.ansible/tmp/netbox_api_dump.json. Future runs using the same version of NetBox should use this cached copy. This is important for performance because the schema file is in many cases very large (>6MB in my testing), so retrieving it every run degrades performance significantly.

Observed Behavior

nb_inventory fetches the API schema on every run, regardless of the fact that A) the version of NetBox hasn't changed, and B) there is a cached copy in ~/.ansible/tmp.