replace work namespace/name labels with annotations

[XiShanYongYe-Chang]

What type of PR is this?

/kind bug

What this PR does / why we need it:

When we create a namespace with a length of 63, the namespace will not be synchronized to the member cluster. The error reported in karmada-controller-manager is as follows:

objectwatcher.go:102] Failed to create resource(kind=Namespace, /test12345678901234567890123456789012345678901234567890123456789) in cluster member1, err is Namespace "test12345678901234567890123456789012345678901234567890123456789" is invalid: metadata.labels: Invalid value: "test12345678901234567890123456789012345678901234567890123456789-56889cc77": must be no more than 63 characters
E0424 07:43:38.082314       1 execution_controller.go:261] Failed to create resource(/test12345678901234567890123456789012345678901234567890123456789) in the given member cluster member1, err is Namespace "test12345678901234567890123456789012345678901234567890123456789" is invalid: metadata.labels: Invalid value: "test12345678901234567890123456789012345678901234567890123456789-56889cc77": must be no more than 63 characters

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

We miss update it in the #4765

Does this PR introduce a user-facing change?:

karmada-controller-manager: fix the error that can not propagate the namespace with a length of 63.

[XiShanYongYe-Chang]

/cc @RainbowMango

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 52.97%. Comparing base (6e5a602) to head (a16b4e2). Report is 2 commits behind head on master.

Files	Patch %	Lines
...controllers/unifiedauth/unified_auth_controller.go	0.00%	2 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4865 +/- ## ========================================== - Coverage 52.98% 52.97% -0.01% ========================================== Files 250 250 Lines 20421 20421 ========================================== - Hits 10820 10819 -1 - Misses 8881 8882 +1 Partials 720 720 ``` | [Flag](https://app.codecov.io/gh/karmada-io/karmada/pull/4865/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/karmada-io/karmada/pull/4865/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io) | `52.97% <0.00%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io#carryforward-flags-in-the-pull-request-comment) to find out more.

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[XiShanYongYe-Chang]

Test result:

# kubectl create ns test12345678901234567890123456789012345678901234567890123456789
namespace/test12345678901234567890123456789012345678901234567890123456789 created

# km1 get ns
NAME                                                              STATUS   AGE
default                                                           Active   13m
karmada-cluster                                                   Active   7m43s
kube-node-lease                                                   Active   13m
kube-public                                                       Active   13m
kube-system                                                       Active   13m
local-path-storage                                                Active   13m
test12345678901234567890123456789012345678901234567890123456789   Active   7s

[XiShanYongYe-Chang]

@whitewindmills Thanks a lot! I update it.

[whitewindmills]

lgtm

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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[RainbowMango]

/lgtm