Handle remaining of Usage Ping metrics from `license_management` to `license_scanning

In %13.0 we dropped support of license_management scanning job, as we renamed it to license_scanning. Still, all metrics are named license_managenent to simplify the naming transition. Now it's time to change this name as well

Proposal

Drop support for any metrics emitted with a license_management key.

Implementation plan

• update usage_data.rb
  • update to remove license_management from SECURE_PRODUCT_TYPES: https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/lib/ee/gitlab/usage_data.rb#L30-32
  • update to switch from license_management_jobs key to license_scanning_jobs in security_products_usage: https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/lib/ee/gitlab/usage_data.rb#L152
  • update to use a single key rather than a combined license key: https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/lib/ee/gitlab/usage_data.rb#L385-388
  • update ee/spec/usage_data to reflect changes above: https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/spec/lib/ee/gitlab/usage_data_spec.rb
• update ee/config/metrics/**/*.yml
  • for each file in {ee/config/metrics/counts_all/20210216175218_user_license_management_jobs.yml, ee/config/metrics/counts_28d/20210216175224_user_license_management_jobs.yml, ee/config/metrics/counts_all/20210204124854_license_management_jobs.yml}
    • disable the metric by setting status to removed (see docs)
    • make a copy of metric using license_scanning rather than license_management (see docs for adding metrics)
    • after new metric verified, create new issue to complete remove the metrics config files