kogito-serverless-operator-353: Enable the sending of the process definition event when the data-index is present

[wmedvede]

Description of the change:

Motivation for the change:

Checklist

• Add or Modify a unit test for your change
• Have you verified that tall the tests are passing?

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[wmedvede]

Would my mind review guys @ricardozanini , @jakubschwan

Silly quick-win but we need to avoid start adding manual configs for the Parodos workflows.

This basically

1. incoporates the mp.messaging.outgoing.kogito-processdefinitions-events.url properly configured when the DI and JS are
   deployed by using the sonataflow-platform
2. incoporates the kogito.service.url for the DI and JS when deployed by using the sonataflow-platform
3. removes the no longer used kogito.events.variables.enabled property

Tests are adjusted accordingly

Thanks!

[ricardozanini]

Thank you! And thank you for the naming refactoring!

[ricardozanini]

@domhanak can you please prioritize this?