Create new endpoint to return Listener jobs list for a selected node

[vitorwtavares]

Description

This issue is part of #18026 Listener Visibility in Operate epic.

Create a new endpoint to be consumed by the frontend that will return the list of Listeners in any given flow node.

Endpoint name: /api/process-instances/:instanceId/listeners
Payload received:

{
  pageSize: Int
  flowNodeId: String
}

Expected return:

{
  listenerType
  listenerKey
  state
  jobType
  event
  time
}

TODO

Additional Information

• time property should be the end time.
• Results should be returned sorted by the time property in chronological order. This is important because for right now there will not be any sorting functionally on the frontend.
• Epic link: 🎯 Listener Visibility in Operate #18026

---

Acceptance Criteria

• Checked if the specific data needs to be provided for the QA process

Definition of Ready - Checklist

• The issue has a meaningful title, description and testable acceptance criteria
• If documentation needs to be updated, an issue is created in the camunda-docs repo, and the issue is added to our Operate project board.
• If HELM charts need to be updated, an issue is created in the camunda-platform-heml repo, and the issue is added to our Operate project board.
• Potential Security risks have been considered
• Cross-team dependencies have been considered