Add code creation approval requirement for ee/lib/code_suggestions dir

Update danger bot rules to require a groupcode creation approval for changes in ee/lib/code_suggestions directory.

That will help groupcode creation stay aware of any changes made within the directory and, if needed, provide guidance for code modifications.

Current Groups

• https://gitlab.com/groups/gitlab-org/code-creation - This stores our code for Code Creation
• https://gitlab.com/code-creation-team - This was the previous group we set up to handle notifications
• https://gitlab.com/gitlab-com/create-team/code-creation - This is the new group we set up for this issue with the goal of having a consistent naming scheme for the whole devopscreate stage.