update lazy-activation-preference.md and lazy_activation_policy_test.go

[zhzhuang-zju]

What type of PR is this? /kind cleanup

What this PR does / why we need it:

• udpate lazy-activation-preference.md refer to https://github.com/karmada-io/karmada/pull/4804#discussion_r1566624578
• update the link in lazy_activation_policy_test.go refer to https://github.com/karmada-io/karmada/pull/4804#discussion_r1568131752

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[zhzhuang-zju]

cc @XiShanYongYe-Chang @chaunceyjiang @chaosi-zju

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 53.11%. Comparing base (7eba66f) to head (138b472).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4843 +/- ## ======================================= Coverage 53.11% 53.11% ======================================= Files 250 250 Lines 20351 20351 ======================================= Hits 10809 10809 - Misses 8824 8825 +1 + Partials 718 717 -1 ``` | [Flag](https://app.codecov.io/gh/karmada-io/karmada/pull/4843/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/4843/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io) | `53.11% <ø> (ø)` | | 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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[karmada-bot]

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