Rename OccurrenceEntity to FindingEntity

Rename Vulnerabilities::OccurrenceEntity to
Vulnerabilities::FindingEntity
Rename files and variables

ee/app/serializers/vulnerabilities/occurrence_entity.rb → ee/app/serializers/vulnerabilities/finding_entity.rb

 # frozen_string_literal: true
 
-class Vulnerabilities::OccurrenceEntity < Grape::Entity
+class Vulnerabilities::FindingEntity < Grape::Entity
   include ::EE::ProjectsHelper # rubocop: disable Cop/InjectEnterpriseEditionModule
   include RequestAwareEntity
 

ee/app/serializers/vulnerabilities/occurrence_reports_comparer_entity.rb

@@ -6,8 +6,8 @@ class Vulnerabilities::OccurrenceReportsComparerEntity < Grape::Entity
   expose :base_report_created_at
   expose :base_report_out_of_date
   expose :head_report_created_at
-  expose :added, using: Vulnerabilities::OccurrenceEntity
-  expose :fixed, using: Vulnerabilities::OccurrenceEntity
-  expose :existing, using: Vulnerabilities::OccurrenceEntity
+  expose :added, using: Vulnerabilities::FindingEntity
+  expose :fixed, using: Vulnerabilities::FindingEntity
+  expose :existing, using: Vulnerabilities::FindingEntity
   expose :scans, using: Vulnerabilities::ScanEntity
 end

ee/app/serializers/vulnerabilities/occurrence_serializer.rb

@@ -3,7 +3,7 @@
 class Vulnerabilities::OccurrenceSerializer < BaseSerializer
   include WithPagination
 
-  entity Vulnerabilities::OccurrenceEntity
+  entity Vulnerabilities::FindingEntity
 
   def represent(resource, opts = {})
     if paginated?

ee/lib/api/vulnerability_findings.rb

@@ -56,7 +56,7 @@ module API
         use :pagination
       end
       desc 'Get a list of project vulnerability findings' do
-        success ::Vulnerabilities::OccurrenceEntity
+        success ::Vulnerabilities::FindingEntity
       end
       get ':id/vulnerability_findings' do
         authorize! :read_vulnerability, user_project
@@ -75,7 +75,7 @@ module API
         Gitlab::Vulnerabilities::OccurrencesPreloader.preload_feedback!(vulnerability_occurrences)
 
         present vulnerability_occurrences,
-                with: ::Vulnerabilities::OccurrenceEntity,
+                with: ::Vulnerabilities::FindingEntity,
                 request: GrapeRequestProxy.new(request, current_user)
       end
     end

ee/spec/serializers/vulnerabilities/occurrence_entity_spec.rb → ee/spec/serializers/vulnerabilities/finding_entity_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-describe Vulnerabilities::OccurrenceEntity do
+describe Vulnerabilities::FindingEntity do
   let_it_be(:user) { create(:user) }
   let_it_be(:project) { create(:project) }