koord-scheduler: support dispatching scheduling error

[eahydra]

Ⅰ. Describe what this PR does

koord-scheduler supports dispatching scheduling error that can give the chance to plugins to process scheduling errors.

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

Patch coverage: 77.27% and project coverage change: -0.01 ⚠️

Comparison is base (4a53f32) 64.73% compared to head (5767abe) 64.72%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1324      +/-   ##
==========================================
- Coverage   64.73%   64.72%   -0.01%     
==========================================
  Files         322      323       +1     
  Lines       33306    33525     +219     
==========================================
+ Hits        21559    21700     +141     
- Misses      10179    10252      +73     
- Partials     1568     1573       +5     

Flag	Coverage Δ
unittests	64.72% <77.27%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
pkg/scheduler/frameworkext/interface.go	83.33% <ø> (ø)
...heduler/frameworkext/framework_extender_factory.go	76.25% <33.33%> (-1.68%)	⬇️
.../frameworkext/eventhandlers/reservation_handler.go	53.70% <50.00%> (+0.15%)	⬆️
.../scheduler/frameworkext/errorhandler_dispatcher.go	100.00% <100.00%> (ø)
pkg/scheduler/frameworkext/framework_extender.go	66.42% <100.00%> (+0.12%)	⬆️

... and 11 files with indirect coverage changes

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[hormes]

/lgtm

[jasonliu747]

/lgtm

[FillZpp]

/approve

[eahydra]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eahydra, FillZpp, jasonliu747

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files:

• cmd/OWNERS [FillZpp]
• pkg/scheduler/OWNERS [eahydra]

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