Update gitlab monitor to 2.6.0
As asked by @ahmadsherif in gitlab-org/gitlab-monitor!61, this MR updates gitlab-monitor to the newest version: 2.6.0. I've also added support for new configuration parameter that was added in this version.
As asked by @ahmadsherif in gitlab-org/gitlab-monitor!61, this MR updates gitlab-monitor to the newest version: 2.6.0. I've also added support for new configuration parameter that was added in this version.