Platform updates (#2340)

* 6.1.0

* Update libs

* Update nrf52 while we're at it

* Remove temporary heltec platform packages

* Update install scripts to flash s3 ota partition bin

platformio.ini

@@ -64,7 +64,7 @@ lib_deps =
   https://github.com/meshtastic/arduino-fsm.git#7db3702bf0cfe97b783d6c72595e3f38e0b19159
   https://github.com/meshtastic/TinyGPSPlus.git#127ad674ef85f0201cb68a065879653ed94792c4
   https://github.com/meshtastic/ArduinoThread.git#72921ac222eed6f526ba1682023cee290d9aa1b3
-  nanopb/Nanopb@^0.4.6
+  nanopb/Nanopb@^0.4.7
   erriez/ErriezCRC32@^1.0.1
   jgromes/RadioLib@^5.7.0
 
@@ -100,7 +100,7 @@ lib_deps =
 [environmental_base]
 lib_deps =
   adafruit/Adafruit BusIO@^1.11.4
-  adafruit/Adafruit Unified Sensor@^1.1.4
+  adafruit/Adafruit Unified Sensor@^1.1.9
   adafruit/Adafruit BMP280 Library@^2.6.6
   adafruit/Adafruit BME280 Library@^2.2.2
   adafruit/Adafruit BME680 Library@^2.0.1