Feature request: cargo pgrx init/make world-bin enable parallel build

[SteveLauC]

Hi, I just initialized this tool on one of my Linux machines, cargo pgrx init --pg17 download takes roughly 3 minutes, looking at the source code:

pgrx/cargo-pgrx/src/command/init.rs

Lines 468 to 496 in 3ea09af

	let mut command = std::process::Command::new("make");
	command
	.arg("world-bin")
	.stdout(std::process::Stdio::piped())
	.stderr(std::process::Stdio::piped())
	.stdin(std::process::Stdio::null())
	.current_dir(pgdir);
	for var in PROCESS_ENV_DENYLIST {
	command.env_remove(var);
	}
	let command_str = format!("{command:?}");
	tracing::debug!(command = %command_str, "Running");
	let child = init.jobserver.get().unwrap().configure_and_run(&mut command, |cmd| cmd.spawn())?;
	let output = child.wait_with_output()?;
	tracing::trace!(status_code = %output.status, command = %command_str, "Finished");
	if output.status.success() {
	Ok(())
	} else {
	Err(eyre!(
	"{}\n{}{}",
	command_str,
	String::from_utf8(output.stdout)?,
	String::from_utf8(output.stderr)?
	))
	}

We are not building Postgres in parallel, any reason behind this?