[Cross-SDK Sync] Add email to updateUser options

[nicknisi]

Automated Cross-SDK Sync

This PR was automatically translated from node PR #1273.

Original Description

Description

Adds email to the userManagement.updateUser.

Documentation

Does this require changes to the WorkOS Docs? E.g. the API Reference or code snippets need updates.

[ ] Yes

If yes, link a related docs PR and add a docs maintainer as a reviewer. Their approval is required.

Translation Notes

src/user-management/interfaces/update-user-options.interface.ts

• Applied: Adding an optional email attribute to the User class
• Applied: Adding an optional email parameter to the initialize method of the User class
• Applied: Adding an optional email parameter to the to_json method of the User class

src/user-management/serializers/update-user-options.serializer.ts

• Applied structured field_addition, field_addition changes