Summarize API returns json column content as string

[kostasb]

Describe the bug:
The summarize call outputs json column content as string instead of json.
Tested with client version: 0.26.7

Repro:
Where "myjson" is a column of type json:

const rec = await xata.db.games.read("rec_ck6m8s0tr08hl26rt2m0");
console.log(rec.myjson);

//response:
{
  "one": "content",
  "two": "content2"
}

const summary = await xata.db.games.summarize({
  columns: ["myjson"],
  summaries: {},
});

console.log(summary.summaries[0].myjson);

//response:
"{\"one\":\"content\",\"two\":\"content2\"}"

Reported on Discord.