Minor fix for `python3 -u` wrapper on forwarder_guest_launcher

Bug: 340126051
Test: TH
Change-Id: I810d52f1d89a9fe9ac98c53de85f1b591b500594
diff --git a/guest/forwarder_guest_launcher/src/main.rs b/guest/forwarder_guest_launcher/src/main.rs
index bba9691..fd1ffd9 100644
--- a/guest/forwarder_guest_launcher/src/main.rs
+++ b/guest/forwarder_guest_launcher/src/main.rs
@@ -112,7 +112,8 @@
 ) -> Result<(), Box<dyn std::error::Error>> {
     let mut cmd = Command::new("python3")
         .arg("-u")
-        .arg("/usr/sbin/tcpstates-bpfcc -s")
+        .arg("/usr/sbin/tcpstates-bpfcc")
+        .arg("-s")
         .stdout(Stdio::piped())
         .spawn()?;
     let stdout = cmd.stdout.take().context("Failed to get stdout of tcpstates")?;