Add language pairs

curl --request POST \
  --url https://cloud.memsource.com/web/api2/v1/priceLists/{priceListUid}/priceSets \
  --header 'Content-Type: application/json' \
  --data '{
  "sourceLanguages": [
    "<string>"
  ],
  "targetLanguages": [
    "<string>"
  ]
}'

{
  "priceSets": [
    {
      "sourceLang": "<string>",
      "targetLang": "<string>",
      "minimumPrice": 123,
      "prices": [
        {
          "workflowStep": {
            "id": "<string>",
            "uid": "<string>",
            "name": "<string>",
            "abbr": "<string>",
            "order": 123,
            "lqaEnabled": true
          },
          "price": 123
        }
      ]
    }
  ]
}