Update config.sh

Author: RealCorebb

tools/config.sh

@@ -9,7 +9,7 @@ IDF_TOOLCHAIN_WIN32="https://dl.espressif.com/dl/xtensa-esp32-elf-win32-1.22.0-8
 IDF_TOOLCHAIN_MACOS="https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-80-g6c4433a-5.2.0.tar.gz"
 
 if [ -z $IDF_BRANCH ]; then
-	IDF_BRANCH="v3.2.3"
+	IDF_BRANCH="v3.3.1"
 fi
 
 # Owner of the target ESP32 Arduino repository