Explicitly disable JavaScript with honeypot fields

These fields are hidden for users with a browser supporting CSS and is
only there to fool bots, so we're testing the case of an attack by bots
using browsers with no CSS support.

spec/system/budgets/investments_spec.rb

@@ -501,7 +501,7 @@ describe "Budget Investments" do
   context "Phase I - Accepting" do
     before { budget.update(phase: "accepting") }
 
-    scenario "Create with invisible_captcha honeypot field" do
+    scenario "Create with invisible_captcha honeypot field", :no_js do
       login_as(author)
       visit new_budget_investment_path(budget)