Extend Security::Report interface with project methods

ee/lib/gitlab/ci/reports/security/report.rb

@@ -5,16 +5,11 @@ module Gitlab
     module Reports
       module Security
         class Report
-          attr_reader :created_at
-          attr_reader :type
-          attr_reader :pipeline
-          attr_reader :findings
-          attr_reader :scanners
-          attr_reader :identifiers
+          attr_reader :created_at, :type, :pipeline, :findings, :scanners, :identifiers
+          attr_accessor :scan, :scanned_resources, :error
 
-          attr_accessor :scan
-          attr_accessor :scanned_resources
-          attr_accessor :error
+          delegate :project, to: :pipeline
+          delegate :id, to: :project, prefix: true
 
           def initialize(type, pipeline, created_at)
             @type = type

ee/spec/lib/gitlab/ci/reports/security/report_spec.rb

@@ -5,10 +5,13 @@ require 'spec_helper'
 RSpec.describe Gitlab::Ci::Reports::Security::Report do
   let_it_be(:pipeline) { create(:ci_pipeline) }
 
-  let(:report) { described_class.new('sast', pipeline, created_at) }
   let(:created_at) { 2.weeks.ago }
 
+  subject(:report) { described_class.new('sast', pipeline, created_at) }
+
   it { expect(report.type).to eq('sast') }
+  it { is_expected.to delegate_method(:project).to(:pipeline) }
+  it { is_expected.to delegate_method(:id).to(:project).with_prefix }
 
   describe '#add_scanner' do
     let(:scanner) { create(:ci_reports_security_scanner, external_id: 'find_sec_bugs') }