koord-scheduler: framework extension executes handler after handling scheduling errors

[eahydra]

Ⅰ. Describe what this PR does

The framework extension executes handlers after handling scheduling errors to gain the opportunity to affect the scheduling queue.

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: 55.17% and project coverage change: +0.06% 🎉

Comparison is base (a3a6267) 65.77% compared to head (2976a73) 65.83%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1633      +/-   ##
==========================================
+ Coverage   65.77%   65.83%   +0.06%     
==========================================
  Files         373      375       +2     
  Lines       39378    39515     +137     
==========================================
+ Hits        25899    26013     +114     
- Misses      11598    11619      +21     
- Partials     1881     1883       +2     

Flag	Coverage Δ
unittests	65.83% <55.17%> (+0.06%)	⬆️

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

Files Changed	Coverage Δ
pkg/scheduler/frameworkext/interface.go	0.00% <ø> (ø)
pkg/scheduler/frameworkext/scheduler_adapter.go	0.00% <0.00%> (ø)
.../scheduler/frameworkext/errorhandler_dispatcher.go	100.00% <100.00%> (ø)
.../frameworkext/eventhandlers/reservation_handler.go	53.61% <100.00%> (ø)

... and 12 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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Details

Needs approval from an approver in each of these files:

• cmd/OWNERS [hormes]
• pkg/scheduler/OWNERS [hormes]

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