[SW]: Allow for Authentication of OpenAPI Operations by passing in Credentials at Workflow Invocation

As users of Kogito SW Orchestrations, it would be ideal to be able to pass in credentials for the OpenAPI Operations (within the flow) at invocation of the Orchestration/Workflow service.

Currently, you have to "bake" in these credentials through loading in application.properties for each OpenAPI document.

Being able to pass in Credentials at invocation would benefit:

1. Credential rotation
2. Multiple users making use of the same Workflow but with their own credentials. (Solving https://issues.redhat.com/browse/KOGITO-6567)

A future consideration for this methodology would be

• How do we pass in different credentials for different Services which are all invoked within the same workflow.

Note this is useful, because the User of the workflow already knows their Credentials and just need to pass it in at invocation. There is no need for updating the deployed service.