scheduler: make gang quickCheck earlier

[ZiMengSheng]

Ⅰ. Describe what this PR does

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

[zwzhang0107]

/lgtm

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 68.56%. Comparing base (7e944d5) to head (e2f5125).
Report is 3 commits behind head on main.

Files	Patch %	Lines
pkg/scheduler/plugins/coscheduling/coscheduling.go	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2064      +/-   ##
==========================================
+ Coverage   68.55%   68.56%   +0.01%     
==========================================
  Files         430      430              
  Lines       39387    39391       +4     
==========================================
+ Hits        27000    27007       +7     
+ Misses      10047    10043       -4     
- Partials     2340     2341       +1     

Flag	Coverage Δ
unittests	68.56% <71.42%> (+0.01%)	⬆️

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[hormes]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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