[bug] $ref resolve uses wrong root dir

So we have project with structure like

project/apidocs/entitity project/apidocs/response project/ts-apidocs/entitity project/ts-apidocs/response

if we launch cli tool like json2ts -i ./apidocs/response/**/*.json -o ts-apidocs we have a problem ResolverError: Error opening file ".../project/entity/Something-2.json" (notice how apidocs folder is missing)

we have a file ./apidocs/response/Something.json which has reference "$ref": "../entity/Something-2.json"

During resolvement cli tool uses process.cwd for resolving https://github.com/bcherny/json-schema-to-typescript/blob/master/src/resolver.ts#L12

but according to docs mentioned at https://github.com/bcherny/json-schema-to-typescript/blob/master/src/index.ts#L24

https://tools.ietf.org/id/draft-pbryan-zyp-json-ref-03.html#rfc.section.4

If the URI contained in the JSON Reference value is a relative URI, then the base URI resolution MUST be calculated according to [RFC3986], section 5.2. Resolution is performed relative to the referring document.

so it should be relative to referring document (Something.json in my example) and not process.cwd

So our current workaround: we use docs dir as cwd, but it will break as soon as we'll have nested folder structure