Add validation for zones

[zishen]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Add validation for zones

Which issue(s) this PR fixes:
part of #3952

Special notes for your reviewer:

@XiShanYongYe-Chang @whitewindmills

Does this PR introduce a user-facing change?:

none

[codecov-commenter]

Codecov Report

Merging #3975 (f8f9314) into master (19fbab5) will increase coverage by 0.04%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##           master    #3975      +/-   ##
==========================================
+ Coverage   54.77%   54.82%   +0.04%     
==========================================
  Files         232      232              
  Lines       22529    22546      +17     
==========================================
+ Hits        12341    12361      +20     
+ Misses       9510     9508       -2     
+ Partials      678      677       -1     

Flag	Coverage Δ
unittests	54.82% <100.00%> (+0.04%)	⬆️

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

Files Changed	Coverage Δ
pkg/apis/cluster/validation/validation.go	79.86% <100.00%> (+5.05%)	⬆️

[whitewindmills]

please don't write like this, it will cause this issue(#3952) to be closed following this PR.

Which issue(s) this PR fixes:
Fixes #3952

[whitewindmills]

/assign

[zishen]

please don't write like this, it will cause this issue(#3952) to be closed following this PR.

Which issue(s) this PR fixes:
Fixes #3952

Ok, got it.

[RainbowMango]

/approve

@zishen Looks good to me, have you tested it?

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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• OWNERS [RainbowMango]

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[whitewindmills]

LGTM

[zishen]

/approve

@zishen Looks good to me, have you tested it?

yes, I had edit cluster, and add zone,zones. All met expectations.

[RainbowMango]

/lgtm