Support for CA certificate, i.e. to use test.mosquitto.org

[bentolor]

I want to connect to https://test.mosquitto.org/ using a client certificate for development purposes.

https://test.mosquitto.org/ssl explains how to create a client certificate for connection.

Unfortunately it seems mqttui is currently lacking an option to provide the certificate authority file to connect to port 8884 (MQTT, encrypted, client certificate required).

I wonder how others use this feature?