Merge branch 'amandarueda-master-patch-06293' into 'master'

Update data category to operational

See merge request gitlab-org/gitlab!84212

config/metrics/counts_28d/20210216181057_projects_with_packages.yml

 ---
-data_category: optional
+data_category: operational
 key_path: usage_activity_by_stage_monthly.package.projects_with_packages
 description: The total number of projects in a given month with at least one package
 product_section: ops