prevent deletion of addresses that are already occupied by other objects

[YaoZengzeng]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes: Fixes #1352

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 46.38%. Comparing base (1efb096) to head (82e0dce). Report is 36 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/controller/workload/cache/service_cache.go	82.35%	2 Missing and 1 partial :warning:

Files with missing lines	Coverage Δ
pkg/controller/workload/cache/workload_cache.go	69.35% <100.00%> (+3.90%)	:arrow_up:
pkg/controller/workload/cache/service_cache.go	79.24% <82.35%> (+54.24%)	:arrow_up:

... and 6 files with indirect coverage changes

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[kmesh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hzxuzhonghu

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• ~~pkg/controller/OWNERS~~ [hzxuzhonghu]

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