- Move bpkg/build2 print_process() to butl::process::print() [quality karen]

- Audit all print_process()/process ctor for path_search() [quality karen]

  We need to make sure that we print the recall not original path. See recent
  changes to <butl/process> for details.

- Remove build2 repositories from scm.codesynthesis.com [infra]