Remove parameterise deprecation warning

DEPRECATION WARNING: Passing the separator argument as a positional
parameter is deprecated and will soon be removed. Use `separator: '_'`
instead.

app/controllers/admin/budget_investments_controller.rb

@@ -69,7 +69,7 @@ class Admin::BudgetInvestmentsController < Admin::BaseController
     end
 
     def resource_name
-      resource_model.parameterize("_")
+      resource_model.parameterize(separator: "_")
     end
 
     def load_investments

app/controllers/valuation/budget_investments_controller.rb

@@ -61,7 +61,7 @@ class Valuation::BudgetInvestmentsController < Valuation::BaseController
     end
 
     def resource_name
-      resource_model.parameterize("_")
+      resource_model.parameterize(separator: "_")
     end
 
     def load_budget

app/helpers/documentables_helper.rb

@@ -1,7 +1,7 @@
 module DocumentablesHelper
 
   def documentable_class(documentable)
-    documentable.class.name.parameterize("_")
+    documentable.class.name.parameterize(separator: "_")
   end
 
   def max_documents_allowed(documentable)

app/helpers/followables_helper.rb

@@ -22,7 +22,7 @@ module FollowablesHelper
   end
 
   def followable_class_name(followable)
-    followable.class.to_s.parameterize("_")
+    followable.class.to_s.parameterize(separator: "_")
   end
 
   def find_or_build_follow(user, followable)

app/helpers/imageables_helper.rb

@@ -5,7 +5,7 @@ module ImageablesHelper
   end
 
   def imageable_class(imageable)
-    imageable.class.name.parameterize("_")
+    imageable.class.name.parameterize(separator: "_")
   end
 
   def imageable_max_file_size

spec/models/concerns/sluggable.rb

@@ -3,7 +3,7 @@ require "spec_helper"
 shared_examples_for "sluggable" do |updatable_slug_trait:|
 
   describe "generate_slug" do
-    let(:factory_name) { described_class.name.parameterize("_").to_sym }
+    let(:factory_name) { described_class.name.parameterize(separator: "_").to_sym }
     let(:sluggable) { create(factory_name, name: "Marló Brañido Carlo") }
 
     context "when a new sluggable is created" do

spec/shared/features/relationable.rb

@@ -1,6 +1,6 @@
 shared_examples "relationable" do |relationable_model_name|
 
-  let(:relationable) { create(relationable_model_name.name.parameterize("_").to_sym) }
+  let(:relationable) { create(relationable_model_name.name.parameterize(separator: "_").to_sym) }
   let(:related1) { create([:proposal, :debate, :budget_investment].sample) }
   let(:related2) { create([:proposal, :debate, :budget_investment].sample) }
   let(:user) { create(:user) }