Fix spec failure by creating a project that has a repository in...

Fix spec failure by creating a project that has a repository in ee/spec/services/merge_requests/build_service_spec.rb
Signed-off-by: Rémy Coutable <remy@rymai.me>

ee/spec/services/merge_requests/build_service_spec.rb

@@ -28,7 +28,7 @@ describe MergeRequests::BuildService do
 
   context 'project default template configured' do
     let(:template) { "I am the template, you fill me in" }
-    let(:project) { create(:project, merge_requests_template: template) }
+    let(:project) { create(:project, :repository, merge_requests_template: template) }
 
     context 'issuable default templates feature not available' do
       before do