Update references to flori/json

Now that the repository was transfered, these links will become
dead in a few months.

Author: byroot

tests/json_parser_test.rb

@@ -27,7 +27,6 @@ def test_argument_encoding
   end if defined?(Encoding::UTF_16)
 
   def test_error_message_encoding
-    # https://github.com/flori/json/actions/runs/6478148162/job/17589572890
     pend if RUBY_ENGINE == 'truffleruby'
 
     bug10705 = '[ruby-core:67386] [Bug #10705]'