Merge pull request #587 from chadlwilson/backport-3-snakeyaml-133

backport (3.x): Bump snakeyaml from 1.31 to 1.33 to resolve CVE-2022-38752 on JRuby

Author: headius

lib/psych/versions.rb

@@ -2,9 +2,9 @@
 
 module Psych
   # The version of Psych you are using
-  VERSION = '3.3.3'
+  VERSION = '3.3.4'
 
   if RUBY_ENGINE == 'jruby'
-    DEFAULT_SNAKEYAML_VERSION = '1.31'.freeze
+    DEFAULT_SNAKEYAML_VERSION = '1.33'.freeze
   end
 end