chore: Fix contact model silently discarding invalid attributes (#4994)

fixes: #4775

spec/controllers/api/v1/widget/contacts_controller_spec.rb

@@ -33,7 +33,7 @@ RSpec.describe '/api/v1/widget/contacts', type: :request do
               as: :json
 
         expect(response).to have_http_status(:success)
-        expected_params = { contact: contact, params: params }
+        expected_params = { contact: contact, params: params, discard_invalid_attrs: true }
         expect(ContactIdentifyAction).to have_received(:new).with(expected_params)
         expect(identify_action).to have_received(:perform)
       end