Closes gh-32028

Motivation

  • On #32028 , we found that DefaultRestClientBuilder.defaultRequest(...) doesn't do anything
  • Cause RestClientBuilder.build() doesn't pass defaultRequest to RestClient

Modification

  • Fix RestClient to use defaultRequest on RestClient.Builder

Result

  • Now RestClient uses defaultRequest that passed from RestClientBuilder.build() well

Comment From: poutsma

Superseded by 0ada78ad841319f5fe7f93fb61e2be30a331cfad.