Expose additional fields in VulnerabilityEntity

ee/app/serializers/vulnerability_entity.rb

@@ -11,7 +11,10 @@ class VulnerabilityEntity < Grape::Entity
     :report_type,
     :resolved_on_default_branch,
     :project_default_branch,
+    :resolved_at,
     :resolved_by_id,
+    :dismissed_at,
     :dismissed_by_id,
+    :confirmed_at,
     :confirmed_by_id
 end

ee/spec/serializers/vulnerability_entity_spec.rb

@@ -19,8 +19,11 @@ describe VulnerabilityEntity do
       report_type: vulnerability.report_type,
       resolved_on_default_branch: vulnerability.resolved_on_default_branch,
       project_default_branch: vulnerability.project_default_branch,
+      resolved_at: vulnerability.resolved_at,
       resolved_by_id: vulnerability.resolved_by_id,
+      dismissed_at: vulnerability.dismissed_at,
       dismissed_by_id: vulnerability.dismissed_by_id,
+      confirmed_at: vulnerability.confirmed_at,
       confirmed_by_id: vulnerability.confirmed_by_id
     )
   end