You can find it in the project settings in the "sharing and permissions" section: https://docs.gitlab.com/ee/user/project/settings/#sharing-an... You can also disable the repository feature, and use the project for issue management only.
IIRC, you must be owner of the project.
You can find it in the project settings in the "sharing and permissions" section: https://docs.gitlab.com/ee/user/project/settings/#sharing-an... You can also disable the repository feature, and use the project for issue management only.