Fix notes create service spec

These tests require a persisted noteable

spec/services/notes/create_service_spec.rb

@@ -41,7 +41,7 @@ RSpec.describe Notes::CreateService do
       end
 
       it 'TodoService#new_note is called' do
-        note = build(:note, project: project)
+        note = build(:note, project: project, noteable: issue)
         allow(Note).to receive(:new).with(opts) { note }
 
         expect_any_instance_of(TodoService).to receive(:new_note).with(note, user)
@@ -50,7 +50,7 @@ RSpec.describe Notes::CreateService do
       end
 
       it 'enqueues NewNoteWorker' do
-        note = build(:note, id: non_existing_record_id, project: project)
+        note = build(:note, id: non_existing_record_id, project: project, noteable: issue)
         allow(Note).to receive(:new).with(opts) { note }
 
         expect(NewNoteWorker).to receive(:perform_async).with(note.id)