afaik the Redmi Pro wasnt released outside of china
Atleast i cant find a rom for it in global.
however, i found the latest official fastboot rom in tgz
https://bigota.d.miui.com/V10.2.1.0.MHQCNXM/omega_images_V10.2.1.0.MHQCNXM_20181219.0000.00_6.0_cn_5fd59042b2.tgz
If you need the latest...