Speed up schemas with change of base framework from pydantic to msgspec

This merge request introduce using Msgspec instead of Pydantic to define data structures in the Hive project. The main goal is to make the system faster by taking advantage of Msgspec’s quicker data handling. This change should make things run more smoothly and with less extra work. Several parts of the code have been updated to work with Msgspec.

Reviewers: @mkudela @kudmich @jziebinski