change fetch function in KFC to use undici fetch and stream

[cmwylie19]

Is your feature request related to a problem? Please describe.

• The byline library has not had a release in 8 years.
• The node-fetch library has not release in 1 year and 3 months.

We have had problems maintaining the long-lived connection to kube-apiserver during the watches due to silent disconnects.

We need to experiment to see if we change these library to improve the overall health of the connection. The idea is to use native stream and fetch.

Initial Scope: Only switch the fetch function and run soak tests with UDS to determine whether there is an improvement. Should there be improvements, we will create a new issue and extend the scope.

Definition of done

• Swap node-fetch and byline for fetch and steam in the long-lived fetch function in KFC Watch