Description of problem:

According to bug https://bugs.launchpad.net/ironic/+bug/2061160, our unit tests now issue this warning:

/home/dtantsur/Projects/ironic/.tox/py3/lib/python3.12/site-packages/jsonschema/validators.py:1300: DeprecationWarning: The metaschema specified by $schema was not found. Using the latest draft to validate, but this will raise an error in the future.
cls = validator_for(schema)

Version-Release number of selected component (if applicable):

OSP 18 (Zed)

How reproducible:

Always

Steps to Reproduce:

1. Clone the repo and run "tox -e py39 – ironic.tests.unit.drivers.modules.redfish.test_management" (chose your py version)
2. The warning highlighted in the bug will show up.

Actual results:

DeprecationWarning bein thrown

Expected results:

No DeprecationWarning should be thrown

Additional info:

The following is an acceptable schema:

http://json-schema.org/draft-04/schema#