feat(user_role): Insert V2 user_roles

[ThisIsMani]

Type of Change

• [ ] Bugfix
• [x] New feature
• [ ] Enhancement
• [ ] Refactoring
• [ ] Dependency updates
• [ ] Documentation
• [ ] CI/CD

Description

• From this PR, we will start inserting V2 user_roles.

Additional Changes

• [ ] This PR modifies the API contract
• [x] This PR modifies the database schema
• [ ] This PR modifies application configuration/environment variables

Motivation and Context

Closes #5543.

How did you test it?

todo!()

Checklist

• [x] I formatted the code cargo +nightly fmt --all
• [x] I addressed lints thrown by cargo clippy
• [x] I reviewed the submitted code
• [ ] I added unit tests for my changes where possible