Remove high-capacity tag from CI Geo jobs

This is a short-term fix to failing ee:geojobs, which have been failing when the runner version is 12.10.3, but passing when the runner version is 13.6.0. By removing the 'high-capacity' tag, we divert the ee:geo job away from the runners that use an older version of gitlab-runner and steer towards a runner using 13.6.0.

The ee:geo job passed with this change: https://gitlab.com/gitlab-org/gitlab-qa/-/jobs/863805834

Investigation issue for failures: https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5768

Issue to upgrade the runner used for 'high-capacity' jobs: https://ops.gitlab.net/gitlab-cookbooks/chef-repo/-/issues/4