Follow advice from pydantic v2 migration guide and fix test (!13) · Merge requests · LHCb Core Software / LbProdRun · GitLab

Ryunosuke O'Neil requested to merge pydantic-v2-ness into main Jul 10, 2023

Follow advice from https://docs.pydantic.dev/dev-v2/migration/#required-optional-and-nullable-fields