node-fetch does not support Node.js 20

[osmolovyk]

While running tskmgr client with node I am getting ECONNREFUSED error message. To fix an issue node-fetch should be updated to latest version. Related topic on Stackoverflow https://stackoverflow.com/questions/72390154/econnrefused-when-making-a-request-to-localhost-using-fetch-in-node-js

[mathpaquette]

we can simply remove node-fetch, fetch is now experimental in node 20