bump(deps): bump github.com/openshift-pipelines/pipelines-as-code version to v0.51.0

[pratap0007]

Changes

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 30.25%. Comparing base (bed9ecb) to head (a73accd).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4183      +/-   ##
==========================================
+ Coverage   27.75%   30.25%   +2.50%     
==========================================
  Files         477      477              
  Lines       25679    23121    -2558     
==========================================
- Hits         7128     6996     -132     
+ Misses      17822    16125    -1697     
+ Partials      729        0     -729     

Flag	Coverage Δ
unit-tests	30.25% <ø> (+2.50%)	⬆️

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[pratap0007]

/retest

[pratap0007]

/retest

[pratap0007]

/retest

[jkhelil]

@pratap0007
still missing :

• Update preUpgradePipelinesAsCodeArtifacts (do not add a new function , the whole list re-runs on operator version change). Delete type keys from TektonConfig, OpenShiftPipelinesAsCode CR, and the pipelines-as-code ConfigMap; keep the https://artifacthub.io/api/v1 → https://artifacthub.io URL migration.
• Update docs Docs still treat catalog-{INDEX}-type as required (docs/OpenShiftPipelinesAsCode.md, docs/TektonConfig.md).
• Run an upgrade test