Run CGI_test in dedicated ruby process

Author: soutaro

Rakefile

@@ -112,7 +112,7 @@ end
 
 task :stdlib_test => :compile do
   test_files = FileList["test/stdlib/**/*_test.rb"].reject do |path|
-    path =~ %r{Ractor} || path =~ %r{Encoding}
+    path =~ %r{Ractor} || path =~ %r{Encoding} || path =~ %r{CGI_test}
   end
 
   if ENV["RANDOMIZE_STDLIB_TEST_ORDER"] == "true"
@@ -121,6 +121,7 @@ task :stdlib_test => :compile do
 
   sh "#{ruby} -Ilib #{bin}/test_runner.rb #{test_files.join(' ')}"
   # TODO: Ractor tests need to be run in a separate process
+  sh "#{ruby} -Ilib #{bin}/test_runner.rb test/stdlib/CGI_test.rb"
   sh "#{ruby} -Ilib #{bin}/test_runner.rb test/stdlib/Ractor_test.rb"
   sh "#{ruby} -Ilib #{bin}/test_runner.rb test/stdlib/Encoding_test.rb"
 end