CHECKSUM.asc for Stream 8 cloud images not updated since September 2022

Description of problem:
"Last modified" for CHECKSUM.asc is 2022-09-13 19:46 at https://cloud.centos.org/centos/8-stream/x86_64/images/. So there's no way to authenticate the checksums for latest images like CentOS-Stream-GenericCloud-8-20230308.3.x86_64.qcow2

How reproducible: always

Steps to Reproduce:
1. curl -s https://cloud.centos.org/centos/8-stream/x86_64/images/CHECKSUM.asc | grep 2023

Actual results:
Output contains nothing that's dated this year

Expected results:
Up-to-date checksums