Update platformio.ini

Platformio is downgrading to 5.1.0 in order to use espidf 4.x.x because espidf 5.x.x currently contains breaking changes.

- further update fixit

Author: gjroots

platformio.ini

@@ -31,7 +31,7 @@ board_build.embed_txtfiles =
 
 
 [env:esp32dev]
-platform = espressif32
+platform = espressif32@5.1.0
 framework = espidf
 board = esp32dev
 board_build.partitions = partitions.csv
@@ -52,4 +52,4 @@ monitor_speed = 115200
 ; monitor_flags = --raw
 
 ; build_flags = -I C:\Users\Marci\.platformio\packages\framework-espidf\components\bt\host\bluedroid\api\include\api
- 
+