manager: add featuregate to remove the restriction of parent quota submit pods

[xulinfei1996]

Ⅰ. Describe what this PR does

This pr add a featureGate for users to remove the restriction of parent quota submit pods.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.51%. Comparing base (19de595) to head (23eb93d).
Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1929      +/-   ##
==========================================
- Coverage   67.53%   67.51%   -0.03%     
==========================================
  Files         414      416       +2     
  Lines       46287    46400     +113     
==========================================
+ Hits        31260    31326      +66     
- Misses      12756    12790      +34     
- Partials     2271     2284      +13     

Flag	Coverage Δ
unittests	67.51% <100.00%> (-0.03%)	⬇️

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[FillZpp]

/lgtm

[hormes]

The webhook part looks fine to me.
The calculation process of the runtime needs to deduct the usage of the parent node, and issues will be recorded for tracking.
/lgtm

[hormes]

#1946

[hormes]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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• pkg/features/OWNERS [hormes]
• pkg/webhook/OWNERS [hormes]

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