fix the CI failures

Author: wqx6

examples/thread-br-app/esp32/README.md

@@ -11,15 +11,15 @@ guides to get started.
 
 ---
 
--   [OpenThread Border Router DevKit Board](#openthread-border-router-board)
+-   [OpenThread Border Router DevKit Board](#openthread-border-router-devkit-board)
 -   [OpenThread RCP](#openthread-rcp)
 -   [OpenThread CLI](#openthread-cli)
 -   [Setup Thread Network](#setup-thread-network)
 -   [Commissioning Thread End Devices](#commissioning-thread-end-devices)
 
 ---
 
-### Thread Border Router Board
+### OpenThread Border Router Devkit Board
 
 The ESP Thread border router board provides an integrated module of an ESP32-S3 and an ESP32-H2.
 
@@ -63,7 +63,7 @@ Detached
 Done
 ```
 
-### Setup/Join Thread Network
+### Setup Thread Network
 
 You can send SetActiveDatasetRequest command to the Thread BR after commissioning it as a
 Matter-Over-Wi-Fi device to setup the Thread network or join an existing Thread network.
@@ -72,11 +72,12 @@ Matter-Over-Wi-Fi device to setup the Thread network or join an existing Thread
 ./chip-tool pairing ble-wifi 1 <ssid> <password> 20202021 3840
 ./chip-tool generalcommissioning arm-fail-safe 180 1 1 0
 ./chip-tool threadborderroutermanagement set-active-dataset-request hex:<dataset-tlvs> 1 1 1
+./chip-tool generalcommissioning commissioning-complete 1 0
 ```
 
 The Thread BR with enable the Thread network interface and start Thread network after it receives
 SetActiveDatasetRequest command. And after the Thread BR sets up or join a Thread network, it will
-send the success response and disarm the fail safe timer.
+send the success response.
 
 ### Commissioning Thread End Devices
 

examples/thread-br-app/esp32/create_ota_image.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python3
 
 import os
-import sys
 import argparse
 import pathlib
-import shutil
 import struct
 
 FILETAG_RCP_VERSION = 0
@@ -38,7 +36,7 @@ def append_flash_args(fout, flash_args_path):
     with open(flash_args_path, 'r') as f:
         # skip first line
         next(f)
-        partition_info_list = [l.split() for l in f]
+        partition_info_list = [line.split() for line in f]
     for offset, partition_file in partition_info_list:
         offset = int(offset, 0)
         if partition_file.find('bootloader') >= 0: