Seeeduino LoRaWan disappeared from board manager

Hello @jiachenglu would it be possible please to extend the .json to include the 1.3.0 board support. I think I (and possibly also @haresfur) still need this because of issue discussed in https://forum.seeedstudio.com/t/seeeduino-lorawan-update-to-1-5-6-lorawan-library-missing/7315

Many thanks, Dave