test: remove psych from gemfile (#3011)

**What problem is this PR intended to solve?** Revert commit 59e4981 which avoided versions of psych that don't work on JRuby
sparklemotion · Oct 22, 2023 · 49a0688 · 49a0688
2 parents f608e9d + 89c109a
commit 49a0688
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Showing 2 changed files with 1 addition and 3 deletions.
diff --git a/Gemfile b/Gemfile
@@ -43,5 +43,3 @@ end
 group :rdoc do
   gem "rdoc", "6.5.0"
 end
-
-gem "psych", "!= 5.1.1", "!= 5.1.0" # https://github.com/ruby/psych/issues/655
diff --git a/test/helper.rb b/test/helper.rb
@@ -50,7 +50,7 @@
 
 require "minitest/autorun"
 require "minitest/benchmark"
-if ENV["NCPU"]
+if ENV["NCPU"] && !Nokogiri.jruby?
   require "minitest/parallel_fork"
   warn "Running parallel tests with NCPU=#{ENV["NCPU"].inspect}"
 end