scheduler: reservation transformer ends early with reservation affinity

[eahydra]

Ⅰ. Describe what this PR does

The Pod declares a ReservationAffinity, which means that the Pod must reuse the Reservation resources, but there are no matching Reservations, which means that the node itself does not need to be processed. We can end early to avoid meaningless operations.

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

[eahydra]

/cc @hormes @FillZpp @ZiMengSheng PTAL

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/cc @hormes @FillZpp @ZiMengSheng PTAL

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[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (3270ae7) 65.92% compared to head (ab90583) 65.94%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1717      +/-   ##
==========================================
+ Coverage   65.92%   65.94%   +0.02%     
==========================================
  Files         385      385              
  Lines       41702    41832     +130     
==========================================
+ Hits        27490    27587      +97     
- Misses      12174    12206      +32     
- Partials     2038     2039       +1     

Flag	Coverage Δ
unittests	65.94% <0.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
pkg/scheduler/plugins/reservation/transformer.go	64.45% <0.00%> (+1.36%)	⬆️

... and 9 files with indirect coverage changes

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[hormes]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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