Update the name of code review bot and feature
What does this MR do and why?
This MR adds a new bot user called duo_code_review_bot
and changes the name of the feature.
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
Related to #464786 (closed)
Edited by Sincheol (David) Kim