Rollup merge of #114453 - Kobzol:ci-group-stdout, r=onur-ozkan

Print GHA log groups to stdout instead of stderr

In all other places (e.g. `bootstrap.py`, `opt-dist`), we use stdout instead of stderr. I think that using stderr might be causing some discrepancies in the log, where sometimes the contents of a group "leak" outside the group. Let's see what happens if we use stdout instead. It's possible that it will be worse, since we print most stuff to stderr (?).

r? `@ghost`

src/tools/build_helper/src/ci.rs

@@ -82,15 +82,15 @@ pub mod gha {
 
  fn start_group(name: impl std::fmt::Display) {
  if is_in_gha() {
- eprintln!("::group::{name}");
+ println!("::group::{name}");
  } else {
- eprintln!("{name}")
+ println!("{name}")
  }
  }
 
  fn end_group() {
  if is_in_gha() {
- eprintln!("::endgroup::");
+ println!("::endgroup::");
  }
  }