Stick to v3.x version of espressif32 platform

Need several changes to work with v4.x

Author: amandel

platformio.ini

@@ -38,7 +38,7 @@ src_dir = src
 extra_configs = custom_config.ini
 
 [env:esp32dev]
-platform = espressif32
+platform = espressif32 @ ^3
 board = esp32dev
 framework = arduino
 monitor_speed = 115200