WHAT

• Our docs that instruct how to connect the Kafka scripts don't currently work, because of the interaction between RHSSO and the OAuthBearerLoginCallbackHandler in the client, when the client doesn't set a scope (RHSSO will reply with an empty one set, which leads to failure), so we should set scope to openid.
• We should similarly update any quickstarts in the same way, if they suffer from the same problem.

WHY

To make the examples in the docs and quickstarts work

HOW

Set scope in the sasl.jaas.config under the OAuthBearerLoginModule