Fix todos spec

This was changed in a community MR, but the branch was far enough behind
master that it didn't have this spec.

spec/features/todos/todos_spec.rb

@@ -165,7 +165,7 @@ describe 'Dashboard Todos', feature: true do
       end
 
       it 'shows the todo' do
-        expect(page).to have_content 'The build failed for your merge request'
+        expect(page).to have_content 'The build failed for merge request'
       end
 
       it 'links to the pipelines for the merge request' do