v1.4.4

What's Changed

• Remove unnecessary pydantic model_config arbitrary_types_allowed=True by @rtuck99 in #755
• Fix for box_size_um not included in robot_load_then_centre_plan. by @rtuck99 in #763
• Fix zocalo callback error by @DominicOram in #766

Full Changelog: v1.4.3...v1.4.4