Mark PipelingStage.Predefined as deprecated

[khanhtc1202]

What this PR does / why we need it:

Which issue(s) this PR fixes:

Part of #4980

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 22.92%. Comparing base (997339c) to head (34fd67d).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5235   +/-   ##
=======================================
  Coverage   22.92%   22.92%           
=======================================
  Files         419      419           
  Lines       45323    45323           
=======================================
  Hits        10389    10389           
  Misses      34136    34136           
  Partials      798      798           

Flag	Coverage Δ
	22.92% <ø> (ø)

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[Warashi]

👍🏻

[khanhtc1202]

Conflict in gen code, so close and reopen another one 👀