[Feature💄]: Migrate to Pydantic v2.0 and compatibility with Odmantic

[wiseaidev]

Background:
As we continue to enhance our server, we have been eager to leverage the new features and improvements offered by Pydantic 2.0. However, we have encountered a significant roadblock in our migration process: Odmantic, a crucial component of our server responsible for Object-Document Mapping (ODM) for MongoDB, currently only supports the Pydantic version 1. This limitation prevents us from taking advantage of the latest Pydantic enhancements, which can lead to suboptimal performance and maintainability of our codebase.

Issue Objectives:
The purpose of this issue is to create a clear and organized tracking system for the development and implementation of Pydantic 2.0 compatibility within Odmantic. By addressing this compatibility issue, we aim to take full advantage of the new features and improvements offered by Pydantic 2.0 while ensuring that our ODM components work seamlessly with the latest version.

Scope of Work:

1. Codebase Update: We will update all Odmantic-related codes accordingly. This may involve modifying existing code, introducing new features, and ensuring that all existing functionalities remain intact.

2. Testing and Validation: After implementing the compatibility changes, rigorous testing and validation procedures will be conducted to ensure that Odmantic works seamlessly with Pydantic 2.0. This includes unit testing, integration testing, and real-world scenario testing to verify the correctness of the integration.

Expected Benefits:

• Leverage Pydantic 2.0 Features: The successful implementation of Pydantic 2.0 compatibility in Odmantic will allow us to leverage the latest features, performance improvements, and bug fixes offered by Pydantic 2.0.

• Codebase Modernization: This update will modernize our codebase, aligning it with current best practices and technologies, ultimately enhancing code quality and maintainability.

• Community Engagement: By addressing this issue, we demonstrate our commitment to providing an up-to-date and robust solution, attracting and retaining contributors and users in our open-source community.

Contributions:

We encourage contributions from the community to expedite the process of making Odmantic compatible with Pydantic 2.0. Contributors can assist with code changes, testing, documentation updates, and providing feedback.

This issue will serve as a central point for tracking progress, discussions, and collaboration efforts related to achieving Pydantic 2.0 compatibility within Odmantic.