Fix Psych.unsafe_load NoMethodError for Ruby 2.6/2.7#14

takaokouji merged 1 commit intomasterspeee/jsonapi-resources:masterfrom

fix/psych-ruby-2.6-2.7-compatibilityspeee/jsonapi-resources:fix/psych-ruby-2.6-2.7-compatibilityCopy head branch name to clipboard