Rename ewm service to integration

Renames ewm project association from service to integration.

app/models/project.rb

@@ -167,7 +167,7 @@ class Project < ApplicationRecord
   has_one :discord_integration, class_name: 'Integrations::Discord'
   has_one :drone_ci_integration, class_name: 'Integrations::DroneCi'
   has_one :emails_on_push_integration, class_name: 'Integrations::EmailsOnPush'
-  has_one :ewm_service, class_name: 'Integrations::Ewm'
+  has_one :ewm_integration, class_name: 'Integrations::Ewm'
   has_one :external_wiki_service, class_name: 'Integrations::ExternalWiki'
   has_one :flowdock_service, class_name: 'Integrations::Flowdock'
   has_one :hangouts_chat_service, class_name: 'Integrations::HangoutsChat'

spec/factories/integrations.rb

@@ -103,7 +103,7 @@ FactoryBot.define do
     issue_tracker
   end
 
-  factory :ewm_service, class: 'Integrations::Ewm' do
+  factory :ewm_integration, class: 'Integrations::Ewm' do
     project
     active { true }
     issue_tracker

spec/factories/projects.rb

@@ -426,7 +426,7 @@ FactoryBot.define do
   factory :ewm_project, parent: :project do
     has_external_issue_tracker { true }
 
-    ewm_service
+    ewm_integration
   end
 
   factory :project_with_design, parent: :project do

spec/lib/banzai/filter/references/external_issue_reference_filter_spec.rb

@@ -213,7 +213,9 @@ RSpec.describe Banzai::Filter::References::ExternalIssueReferenceFilter do
   end
 
   context "ewm project" do
-    let_it_be(:service) { create(:ewm_service, project: project) }
+    let_it_be(:integration) { create(:ewm_integration, project: project) }
+
+    let(:service) { integration } # TODO: remove when https://gitlab.com/gitlab-org/gitlab/-/issues/330300 is complete
 
     before do
       project.update!(issues_enabled: false)

spec/lib/gitlab/import_export/all_models.yml

@@ -391,7 +391,7 @@ project:
 - youtrack_service
 - custom_issue_tracker_integration
 - bugzilla_integration
-- ewm_service
+- ewm_integration
 - external_wiki_service
 - mock_ci_service
 - mock_monitoring_service

spec/models/project_spec.rb

@@ -65,7 +65,7 @@ RSpec.describe Project, factory_default: :keep do
     it { is_expected.to have_one(:youtrack_service) }
     it { is_expected.to have_one(:custom_issue_tracker_integration) }
     it { is_expected.to have_one(:bugzilla_integration) }
-    it { is_expected.to have_one(:ewm_service) }
+    it { is_expected.to have_one(:ewm_integration) }
     it { is_expected.to have_one(:external_wiki_service) }
     it { is_expected.to have_one(:confluence_integration) }
     it { is_expected.to have_one(:project_feature) }