Allow pinging other roles on Discord
There are times when your merge request is of interest to people that are not developers. For example, after making changes to a translation, it would be handy to use the /review command in the #translation channel and ping people in the @Translator Discord role instead of @Code Reviewer.
An optional parameter for the /review command might be added. It could take a Discord role as an argument. If not defined by the user, it could use the @Code Reviewer role as the default value.