Changes to Add people to a list

added the new approval_forced enum value to the error/code response property for the response status 400

added the new approval_forced enum value to the error/code response property for the response status 401

added the new approval_forced enum value to the error/code response property for the response status 403

added the new approval_forced enum value to the error/code response property for the response status 404

added the new approval_forced enum value to the error/code response property for the response status 429

the security scope lists:write was added to the endpoint's security scheme oauth2

the security scope sourcing:spend was removed from the endpoint's security scheme oauth2