chore: remove tekton-ci component

[tisutisu]

tekton-ci component is not used anymore, we moved to konflux-ci, removing the component and all references to it.

Risk Assessment
Low
This PR doesn't change any core Konflux components.

[github-actions]

Kustomize Render Diff

Comparing e99df2e14 → f081f8a58

No render differences detected.

[mmorhun]

LGTM

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mmorhun, tisutisu
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.32%. Comparing base (e99df2e) to head (bace2a1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #12637   +/-   ##
=======================================
  Coverage   53.32%   53.32%           
=======================================
  Files          20       20           
  Lines        1309     1309           
=======================================
  Hits          698      698           
  Misses        539      539           
  Partials       72       72           

Flag	Coverage Δ
go	53.32% <ø> (ø)

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