Fix Spinach and Capybara dependencies

Closes #30347

features/support/capybara.rb

-require 'spinach/capybara'
 require 'capybara/poltergeist'
 require 'capybara-screenshot/spinach'
 
@@ -25,5 +24,8 @@ Capybara.ignore_hidden_elements = false
 Capybara::Screenshot.prune_strategy = :keep_last_run
 
 Spinach.hooks.before_run do
+  require 'spinach/capybara'
+  require 'capybara/rails'
+
   TestEnv.eager_load_driver_server
 end

spec/support/test_env.rb

@@ -172,7 +172,7 @@ module TestEnv
   def eager_load_driver_server
     return unless defined?(Capybara)
 
-    puts "Starting the Capybara driver' server..."
+    puts "Starting the Capybara driver server..."
     Capybara.current_session.visit '/'
   end