fix: call onCircular callback for all occurrences of circular $refs#408

jonluca merged 2 commits intoAPIDevTools:mainAPIDevTools/json-schema-ref-parser:mainfrom

HugoHSun:fix/oncircular-callback-all-occurrencesHugoHSun/json-schema-ref-parser:fix/oncircular-callback-all-occurrencesCopy head branch name to clipboard