Merge branch 'mdrussell-master-patch-82343' into 'master'

Correcting metric descriptions for deployments

See merge request gitlab-org/gitlab!82412

config/metrics/counts_28d/20210216181937_failed_deployments.yml

 ---
 data_category: optional
 key_path: usage_activity_by_stage_monthly.release.failed_deployments
-description: Total failed deployments
+description: Disinct users who initiated a failed deployment.
 product_section: ops
 product_stage: release
 product_group: group::release

config/metrics/counts_28d/20210216181941_successful_deployments.yml

 ---
 data_category: optional
 key_path: usage_activity_by_stage_monthly.release.successful_deployments
-description: Total successful deployments
+description: Disinct users who initiated a successful deployment.
 product_section: ops
 product_stage: release
 product_group: group::release