scheduler: optimize QueueSort func when Gang and Barepod Coexists

[ZiMengSheng]

Ⅰ. Describe what this PR does

scheduler: optimize QueueSort func when Gang and Barepod Coexists

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

Attention: Patch coverage is 13.63636% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 67.51%. Comparing base (af5f951) to head (e9ab057).
Report is 5 commits behind head on main.

Files	Patch %	Lines
pkg/scheduler/plugins/coscheduling/core/core.go	0.00%	13 Missing ⚠️
pkg/scheduler/plugins/coscheduling/coscheduling.go	33.33%	5 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1977      +/-   ##
==========================================
- Coverage   67.55%   67.51%   -0.04%     
==========================================
  Files         420      421       +1     
  Lines       47059    47100      +41     
==========================================
+ Hits        31789    31798       +9     
- Misses      12961    12987      +26     
- Partials     2309     2315       +6     

Flag	Coverage Δ
unittests	67.51% <13.63%> (-0.04%)	⬇️

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[hormes]

This fix is LGTM.
Try to use ut to construct a problem of frequently scheduling a podgroup. After adding this fix, the problem is solved.

[buptcozy]

/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

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