* Implement UpdateUserResetPasswordEnrollment command and interface for managing user password reset enrollment in organizations
* Add unit tests for UpdateUserResetPasswordEnrollmentCommand to validate user enrollment and error handling
* Add IUpdateUserResetPasswordEnrollmentCommand to service collection for user password reset enrollment management
* Add integration tests for OrganizationUsersController reset password enrollment functionality
* Refactor OrganizationUsersController to use IUpdateUserResetPasswordEnrollmentCommand for password reset enrollment updates
* Remove UpdateUserResetPasswordEnrollmentAsync method and related dependencies from IOrganizationService and OrganizationService implementations
* Update IUpdateUserResetPasswordEnrollmentCommand and UpdateUserResetPasswordEnrollmentCommand to support nullable resetPasswordKey
* Refactor unit tests for UpdateUserResetPasswordEnrollmentCommand to improve naming conventions and enhance clarity in test cases
