Path to the Truststore or Certification Authorities (CA) location.
This property can be used to set the path to the CA location, 'ssl.ca.location', which is used by the client app to verify the broker's certificate.
For example: C:/Keys/KafkaKeys/ca-cert.
The client app will only accept connections from servers with a certificate signed by a trusted CA. Any other certificate that is not trusted by the machine will be rejected.