Use `empty_project` where possible in spec/features/issuables

(It wasn't possible.)

spec/features/issuables/close_reopen_report_toggle_spec.rb

@@ -79,7 +79,7 @@ describe 'Issuables Close/Reopen/Report toggle' do
   end
 
   context 'on a merge request' do
-    let(:project) { create(:project) }
+    let(:project) { create(:project, :repository) }
     let(:issuable) { create(:merge_request, source_project: project) }
 
     before do
@@ -96,7 +96,7 @@ describe 'Issuables Close/Reopen/Report toggle' do
     end
 
     context 'when user doesnt have permission to update' do
-      let(:cant_project) { create(:project) }
+      let(:cant_project) { create(:project, :repository) }
       let(:cant_issuable) { create(:merge_request, source_project: cant_project) }
 
       before do

spec/features/issuables/user_sees_sidebar_spec.rb

@@ -3,7 +3,7 @@ require 'rails_helper'
 describe 'Issue Sidebar on Mobile' do
   include MobileHelpers
 
-  let(:project) { create(:project, :public) }
+  let(:project) { create(:project, :public, :repository) }
   let(:merge_request) { create(:merge_request, source_project: project) }
   let(:issue) { create(:issue, project: project) }
   let!(:user) { create(:user)}