Add registry authentication details to the credentials store. Registry credentials are required to push and pull OCI-compatible ARM Orka images to or from private repositories. The server name must include the scheme, hostname and (optionally) port. For example, https://ghcr.io or https://10.221.188.5:30080. If insecure communication is allowed, requests to the registry server will fallback to HTTP when HTTPS is unavailable (disabled by default). To replace credentials for a given server name, set the replace parameter to true.