Fix RSpec/ExpectInHook cop (#25100)

spec/controllers/settings/applications_controller_spec.rb

@@ -182,12 +182,10 @@ describe Settings::ApplicationsController do
   describe 'regenerate' do
     let(:token) { user.token_for_app(app) }
 
-    before do
+    it 'creates new token' do
       expect(token).to_not be_nil
       post :regenerate, params: { id: app.id }
-    end
 
-    it 'creates new token' do
       expect(user.token_for_app(app)).to_not eql(token)
     end
   end