[CI] Point development to decoder development (#1421)

So as to have nightly builds based on the decoder development branch

platformio.ini

@@ -142,7 +142,7 @@ somfy_remote=Somfy_Remote_Lib@0.3.0
 rtl_433_ESP = https://github.com/NorthernMan54/rtl_433_ESP.git#v0.1.6
 emodbus =  miq19/eModbus@1.0.0
 gfSunInverter = https://github.com/BlackSmith/GFSunInverter.git#v1.0.1
-decoder = https://github.com/theengs/decoder.git#v1.0.0
+decoder = https://github.com/theengs/decoder.git
 ssd1306 = thingpulse/ESP8266 and ESP32 OLED driver for SSD1306 displays@^4.3.0
 lm75 = jeremycole/I2C Temperature Sensors derived from the LM75@^1.0.3
 rn8209 = https://github.com/theengs/RN8209C-SDK.git#arduino