Fix gl-icon variant in ee/app/assets/javascripts/packages_and_registries/container_registry/explorer/components/list_page/container_scanning_counts.vue

from !173401 (comment 2226258584)

The gl-icon on line 127 seems like it is for displaying information and should use a info variant. for more information look at the gl-icon storybook entry: https://gitlab-org.gitlab.io/gitlab-ui/?path=/docs/base-icon--docs

Implementation Guide: change variant to "info". make sure to add screenshots to MR