Update tests/e2e/stress-test.sh

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: kobe0938

tests/e2e/stress-test.sh

@@ -136,8 +136,8 @@ Options:
     -p, --port PORT         Router port (default: 30080)
     -l, --log-dir DIR       Log directory (default: /tmp/router-stress-logs)
     -m, --model MODEL       Model to use (default: facebook/opt-125m)
-    --backend1-port PORT    First backend port (default: 8000)
-    --backend2-port PORT    Second backend port (default: 8001)
+    --backend1-port PORT    First backend port (default: 8001)
+    --backend2-port PORT    Second backend port (default: 8002)
     -h, --help              Show this help
 
 Examples: