message: [config] Change terraform build script to be platform independent
  Previous version of this script was using the `-t` flag to the `mv`
  command which does not exist on all (older) platforms, e.g. macOS.
  Closes:
  Approved by: runtian-zhou
diff: @@ -20,7 +20,7 @@ cd $OUTDIR
  # Remove all generated node.config.toml files.
  find . -mindepth 2 -iname node.config.toml | xargs rm
  # Move all keys files to single top-level directory.
  -find . -mindepth 2 -iname '*.keys.toml' -exec mv -f -t . {} +
  +find . -mindepth 2 -iname '*.keys.toml' | xargs -I '{}' mv '{}' ./
  # Move all seed peers files to top-level directory.
  find . -mindepth 2 -iname '*.seed_peers.config.toml' | xargs rm
  # Move all network peers files to top-level directory.
  