Increase rspec retry for the dynamic fields test

Author: Mattia Roccoberton

spec/system/dynamic_fields_spec.rb

@@ -66,7 +66,7 @@ def test_change_css(target, attrs1, attrs2, options = {})
   end
 
   context 'with some dynamic fields' do
-    it 'checks the conditions and actions', :aggregate_failures, retry: 2 do # rubocop:disable RSpec/ExampleLength
+    it 'checks the conditions and actions', retry: 3 do # rubocop:disable RSpec/ExampleLength, RSpec/MultipleExpectations
       visit "/admin/posts/#{post.id}/edit"
 
       expect(page).to have_css('#post_data_field_111[data-if="checked"][data-then="addClass red"][data-target="#post_data_field_111_input label"]')