Convert settings/migration spec controller->system (#33496)

spec/requests/settings/migrations_spec.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Settings Migrations' do
+  describe 'GET #show' do
+    context 'when user is not signed in' do
+      subject { get '/settings/migration' }
+
+      it { is_expected.to redirect_to new_user_session_path }
+    end
+  end
+
+  describe 'POST #create' do
+    context 'when user is not signed in' do
+      subject { post '/settings/migration' }
+
+      it { is_expected.to redirect_to new_user_session_path }
+    end
+  end
+end