feat: bump json-schema-ref-parser

[philsturgeon]

Bug Fixes

• Stop infinite recursion w/ crawling external refs (stop infinite recursion w/ crawling external refs json-schema-ref-parser#231)
• Exception when options is undefined (exception when options is undefined json-schema-ref-parser#215)

Performance

• add processedObject list to avoid recursion in already processed tree parts (Performances problems fixes on big files with a lot of references on same big object json-schema-ref-parser#195)
• add dereferencedCache to avoid to re-treat object already dereferenced (Performances problems fixes on big files with a lot of references on same big object json-schema-ref-parser#195)
• Use ES6 collections for lookups in crawl(). (Use ES6 collections for lookups in crawl(). json-schema-ref-parser#212)

[philsturgeon]

Change is contained in #191.