Description of problem:

When configuring postgres replicas via options.statefulSets in the  TektonConfig CR on OpenShift, the configuration is ignored and postgres remains at 1 replica.Example Configuration (not working on OpenShift):

  result:
    disabled: false
    is_external_db: false
    options:
      statefulSets:
        tekton-results-postgres:
          spec:
            replicas: 2  # ← IGNORED on OpenShift

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Deploy Tekton Operator on OpenShift
2. Create a TektonConfig/TektonResult CR with postgres replica configuration:

 result:
  disabled: false
  is_external_db: false
  options:
    statefulSets:
      tekton-results-postgres:
        spec:
          replicas: 2

1. Check the postgres StatefulSet.

Actual results:

The postgres StatefulSet is created with only 1 replica (default):

*NAME                      READY   AGE
tekton-results-postgres   1/1     5m*

Expected results:

{}{}

The postgres StatefulSet should be created with 2 replicas as configured:

NAME                      READY   AGE
tekton-results-postgres   2/2     5m

Reproducibility (Always/Intermittent/Only Once):

Always

Acceptance criteria: 

Given a TektonConfig on OpenShift with postgres replica configuration, When is_external_db: false and options.statefulSets.tekton-results-postgres.spec.replicas is set to N, Then the postgres StatefulSet should be created/updated with N replicas.

Definition of Done:

Build Details:

Additional info (Such as Logs, Screenshots, etc):

 *