Enable security scanners
Overview
From the threat model review conducted in https://gitlab.com/gitlab-com/gl-security/appsec/appsec-reviews/-/issues/91#note_541473742 it was pointed out that we don't have the Application security scanners enabled and it should be done to run as part of our pipeline.
Documentation: https://gitlab.com/gitlab-com/gl-security/appsec/appsec-reviews/-/issues/91#note_541473742