Identify IRremote library commit (#719)

and avoid pointing to the last revision

platformio.ini

@@ -75,7 +75,7 @@ rc-switch = https://github.com/1technophile/rc-switch.git#385a7e0
 newremoteswitch = https://github.com/1technophile/NewRemoteSwitch.git#8eb980e
 ble = https://github.com/eos1d3/ESP32_BLE.git#9d6c1ed
 irremoteesp = IRremoteESP8266@2.7.7
-irremote = IRremote
+irremote = https://github.com/z3t0/Arduino-IRremote.git#1c08a37
 lora = https://github.com/sandeepmistry/arduino-LoRa.git#f4a1d27
 esppilight = ESPiLight@0.16.2
 rfWeatherStation = WeatherStationDataRx@0.3.1