Update repositories.txt (#5003)

Author: Rupakpoddar

repositories.txt

@@ -5411,6 +5411,7 @@ https://github.com/Rufus31415/Sharer
 https://github.com/ruiseixasm/Robust-EEPROM
 https://github.com/ruiseixasm/Versatile_RotaryEncoder
 https://github.com/ruminize/FlashLightLED
+https://github.com/Rupakpoddar/FirebaseArduino
 https://github.com/Rupakpoddar/ESP32Firebase
 https://github.com/Rupakpoddar/ESP32Webhook
 https://github.com/Rupakpoddar/ESP8266Firebase