Update sysinfo crate to 0.29.6 (#685)

* update sysinfo package to fix build error

* update tor process sysinfo calls to new api

* update deprecation warnings

* small logic cleanup

* tweak to retrigger CI

* new_all() not required

* give longer for test thread to stop to hopefully alleviate inconsistent CI failures

controller/tests/self_send.rs

@@ -133,7 +133,7 @@ fn self_send_test_impl(test_dir: &'static str) -> Result<(), libwallet::Error> {
 
 	// let logging finish
 	stopper.store(false, Ordering::Relaxed);
-	thread::sleep(Duration::from_millis(200));
+	thread::sleep(Duration::from_millis(1000));
 	Ok(())
 }