fix(user_role): Restrict updating user role to the same EntityType

[ThisIsMani]

Type of Change

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

Description

• Currently update user role API allows updating a merchant level user role to profile level, which should not be possible.

Additional Changes

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

Motivation and Context

Closes #6222.

How did you test it?

curl --location 'http://localhost:8080/user/user/update_role' \
--header 'Authorization: JWT' \
--data-raw '{
    "email": "merchant level user email",
    "role_id": "profile_admin"
}'

This call should throw the following error.

{
    "error": {
        "type": "invalid_request",
        "message": "User Role Operation Not Supported",
        "code": "UR_23"
    }
}

Checklist

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

[semanticdiff-com]

Review changes with SemanticDiff.

Analyzed 1 of 1 files.

	Filename	Status
✔️	crates/router/src/core/user_role.rs	Analyzed