fix pio upload

[nextgens]

Without this PIO barks:

*** [upload] AssertionError : Missed target configuration for rak4631
Traceback (most recent call last):
  File "/home/nextgens/.platformio/packages/tool-scons/scons-local-4.8.1/SCons/Action.py", line 1441, in execute
    result = self.execfunction(target=target, source=rsources, env=env)
  File "/home/nextgens/.platformio/platforms/espressif32@6.11.0/builder/main.py", line 35, in BeforeUpload
    env.AutodetectUploadPort()