Kafka Scaler: Add UnsafeSsl flag

[BojanZelic-DD]

Proposal

I have a Kafka cluster that I need to connect to but the certificate doesn't match the domain name or is self signed, I should be able to ignore the invalid TLS certificate and connect anyway If I choose to do so;

Use-Case

It would be nice to have a flag that can be configured to allow unsafessl connections when talking to Kafka - similarly to how this exists for other scalers;

ex:

triggers:
- type: kafka
  metadata:
...
    tls: enable
    unsafeSsl: false

Is this a feature you are interested in implementing yourself?

Yes

Anything else?

No response