Add special config to avoid a inconsistant LoadError

Error is
```
Failure/Error: @app.call(env)
     LoadError:
       Unable to autoload constant Api::V0::OrderCyclesController, expected /Users/jibees/dev/openfoodnetwork/app/controllers/api/v0/order_cycles_controller.rb to define it
```

spec/features/consumer/shopping/shopping_spec.rb

@@ -161,6 +161,12 @@ feature "As a consumer I want to shop with a distributor", js: true do
         end
 
         describe "two order cycles and more than 20 products for each" do
+          around do |example|
+            Capybara.raise_server_errors = false
+            example.run
+            Capybara.raise_server_errors = true
+          end
+
           before do
             20.times do
               product = create(:simple_product, supplier: supplier)