Add ZonedDateTime data type to GQLAlchemy

[matea16]

Description

Added Zoned date time data type that Memgraph supports to GQLAlchemy.

Pull request type

• [x] Feature

Related issues

Closes https://github.com/memgraph/gqlalchemy/issues/300

Checklist:

• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

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Reviewer checklist (the reviewer checks this part)

• [ ] Core feature implementation
• [ ] Tests
• [ ] Code documentation
• [ ] Documentation on gqlalchemy/docs

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