Automated cherry pick of #5989: fix rebalancer auto deleted failed

[deefreak]

Cherry pick of #5989 on release-1.12.
#5989: fix rebalancer auto deleted failed
For details on the cherry pick process, see the cherry pick requests page.

`karmada-controller-manager`: Fixed the bug of WorkloadRebalancer doesn't get deleted after TTL.

[RainbowMango]

/retest
The failing test is unrelated:

FAIL pkg/search.TestDeleteClusterEventHandler/AddAllEventHandlers_TriggerDeleteClusterEvent_DeletedClusterAddedToWorkQueue (-1.00s)
  FAIL pkg/search.TestDeleteClusterEventHandler (-1.00s)
make: *** [Makefile:122: test] Error 1

=== Failed
=== FAIL: pkg/search  (0.00s)
panic: test timed out after 10m0s
running tests:
	TestDeleteClusterEventHandler (10m0s)
	TestDeleteClusterEventHandler/AddAllEventHandlers_TriggerDeleteClusterEvent_DeletedClusterAddedToWorkQueue (10m0s)

goroutine 195 [running]:
testing.(*M).startAlarm.func1()
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:2366 +0x265
created by time.goFunc
	/opt/hostedtoolcache/go/1.22.9/x64/src/time/sleep.go:177 +0x45

goroutine 1 [chan receive, 10 minutes]:
testing.(*T).Run(0xc0002e6d00, {0x3e6aef7, 0x1d}, 0x3f79198)
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:1750 +0x851
testing.runTests.func1(0xc0002e6d00)
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:2161 +0x86
testing.tRunner(0xc0002e6d00, 0xc00006db00)
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:1689 +0x21f
testing.runTests(0xc00034e528, {0x5c86180, 0x8, 0x8}, {0xc00006dba8?, 0xc00006dbf0?, 0x5ca8fe0?})
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:2159 +0x8bf
testing.(*M).Run(0xc000701900)
	/opt/hostedtoolcache/go/1.22.9/x64/src/testing/testing.go:2027 +0xf18
main.main()

[RainbowMango]

cc @XiShanYongYe-Chang
Any update regarding the failing test?
Is there an issue tracking this?

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 46.52%. Comparing base (42fafd7) to head (bd911d8).

Files with missing lines	Patch %	Lines
...orkloadrebalancer/workloadrebalancer_controller.go	0.00%	2 Missing and 1 partial ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.12    #5995      +/-   ##
================================================
- Coverage         46.52%   46.52%   -0.01%     
================================================
  Files               664      664              
  Lines             54787    54785       -2     
================================================
- Hits              25492    25487       -5     
- Misses            27669    27671       +2     
- Partials           1626     1627       +1     

Flag	Coverage Δ
unittests	46.52% <0.00%> (-0.01%)	⬇️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[XiShanYongYe-Chang]

Any update regarding the failing test?

It was recently fixed with #5936, and the cause of the error was not fully determined. After the repair, the probability of occasional occurrence has decreased, but it is still not avoided.

Is there an issue tracking this?

The issue needs to be re-opened to track the issue: #5926

[RainbowMango]

/lgtm
/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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

The pull request process is described here

Needs approval from an approver in each of these files:

• pkg/controllers/OWNERS [RainbowMango]
• test/OWNERS [RainbowMango]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment