Update uDSV.d.ts

[1mike12]

update type because doesn't match runtime schema

I copied the schema because I wanted to hardcode it for my particular use case. When I tried to recreate the same schema that I found on runtime, it didn't match

real schema

{
  "skip": 1,
  "col": "\t",
  "row": "\n",
  "trim": false,
  "cols": omitted
}