Merge branch 'release_usage_metrics' into 'master'

Adding additional usage metrics for Release to weekly ping

See merge request gitlab-org/gitlab-ce!25014

lib/gitlab/usage_data.rb

@@ -54,6 +54,8 @@ module Gitlab
             auto_devops_disabled: count(::ProjectAutoDevops.disabled),
             deploy_keys: count(DeployKey),
             deployments: count(Deployment),
+            successful_deployments: count(Deployment.success),
+            failed_deployments: count(Deployment.failed),
             environments: count(::Environment),
             clusters: count(::Clusters::Cluster),
             clusters_enabled: count(::Clusters::Cluster.enabled),

spec/lib/gitlab/usage_data_spec.rb

@@ -79,6 +79,8 @@ describe Gitlab::UsageData do
         auto_devops_disabled
         deploy_keys
         deployments
+        successful_deployments
+        failed_deployments
         environments
         clusters
         clusters_enabled