:recycle: add deserializer + extract custom deserializing date class

[sebastianMindee]

Description

:recycle: add explicit jackson deserializers to match existing syntax + extract date deserializer from Job

Types of changes

• [x] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Requires a change to the official Guide documentation.