Test deprecation messages

[knirirr]

Here's an example from running tests:

./isa-api/venv/lib/python3.11/site-packages/jsonschema/validators.py:431: DeprecationWarning: Passing a schema to Valida
tor.iter_errors is deprecated and will be removed in a future release. Call validator.evolve(schema=new_schema).iter_errors(...) instead.

Presumably this will involve upgrading dependencies in requirements.txt.