public static String systemPrefix(String systemName) {
        return String.join(".", PREFIX, systemName).toLowerCase();
    }
Tenant secret store constants and functions used across modules and repos.
Note that we cannot use SystemName and TenantName from config-provision here,
as that bundle is not available in tenant containers.

@author gjoranv
jdisc-cloud-aws/src/main/java/ai/vespa/secret/aws/AthenzUtil.java