Introduced descheduler leaderElection options including: --leader-elect-lease-duration, --leader-elect-renew-deadline, --leader-elect-retry-period,

[yanfeng1992]

Signed-off-by: huangyanfeng [email protected]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

descheduler add LeaderElection config

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

`karmada-descheduler`: Introduced leaderElection options including: `--leader-elect-lease-duration`, `--leader-elect-renew-deadline`, `--leader-elect-retry-period`, the default value not changed compared to previous version.

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign garrybest for approval. For more information see the Kubernetes Code Review Process.

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

Needs approval from an approver in each of these files:

• cmd/descheduler/OWNERS

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

[codecov-commenter]

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

Codecov Report

Attention: Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.

Project coverage is 42.32%. Comparing base (e76ce63) to head (5dd6aba).
Report is 289 commits behind head on master.

Files with missing lines	Patch %	Lines
cmd/descheduler/app/options/options.go	0.00%	13 Missing ⚠️

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

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5787      +/-   ##
==========================================
+ Coverage   34.14%   42.32%   +8.17%     
==========================================
  Files         643      656      +13     
  Lines       44522    55883   +11361     
==========================================
+ Hits        15204    23653    +8449     
- Misses      28162    30712    +2550     
- Partials     1156     1518     +362     

Flag	Coverage Δ
unittests	42.32% <0.00%> (+8.17%)	⬆️

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.