Importing liquibase.asc key returns error: key 1 not an armored public key

This was working, but this week it has stopped.

rpm --import https://repo.liquibase.com/liquibase.asc

returns error:

error: https://repo.liquibase.com/liquibase.asc: key 1 not an armored public key

I have this in a CI/CD workflow. I tried to run it manually and it gave me the same error:

CentOS Linux 7/Amazon Linux 2023 same error on both