Geo: Fix incorrect datetime_with_timezone schema
The migration used datetime_with_timezone, but the schema used datetime: https://gitlab.com/gitlab-org/gitlab-ee/blob/85681f7ffdd26a762560388119ef3f8c65966f08/ee/db/geo/migrate/20180427114641_add_repository_check_to_geo_project_registry.rb
Edited by Stan Hu