Update clean deploy pipeline creation

[callmevladik]

As part of our continuous efforts to improve the user experience on the Portal UI, there is a need to update the logic for clean pipelines. The updated logic should specifically target and update existing values derived from the TriggerTemplate for CDSTAGE and CDPIPELINE, while ignoring other values. This ensures that only relevant pipeline information is processed, enhancing efficiency and accuracy.

The TriggerTemplate values to be updated are as follows:

• name: CDSTAGE
  value: $(tt.params.CDSTAGE)
• name: CDPIPELINE
  value: $(tt.params.CDPIPELINE)

This task involves modifying the underlying code to implement this logic.

Acceptance Criteria

1. The Portal UI logic correctly searches for and updates the CDSTAGE and CDPIPELINE values from the TriggerTemplate.
2. Other values in the TriggerTemplate are skipped and left unchanged.
3. The updated logic does not affect the performance or other functionalities of the Portal UI.
4. Adequate unit tests are added to cover the new logic.
5. Documentation is updated to reflect the changes in the logic.