add e2e for FederatedHPA and metrics-adapter

[chaosi-zju]

What type of PR is this?

/kind failing-test

What this PR does / why we need it:

add e2e for FederatedHPA and metrics-adapter.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[chaosi-zju]

@chaunceyjiang can you help reviewing this PR?

[codecov-commenter]

Codecov Report

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

Project coverage is 53.17%. Comparing base (4ccffcc) to head (b3ccd3b).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4903 +/- ## ========================================== - Coverage 53.18% 53.17% -0.02% ========================================== Files 252 252 Lines 20510 20510 ========================================== - Hits 10909 10906 -3 - Misses 8882 8884 +2 - Partials 719 720 +1 ``` | [Flag](https://app.codecov.io/gh/karmada-io/karmada/pull/4903/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/4903/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io) | `53.17% <ø> (-0.02%)` | :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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[chaosi-zju]

ready

cc @RainbowMango

[RainbowMango]

cc test owners /assign @XiShanYongYe-Chang @Vacant2333

[chaosi-zju]

@XiShanYongYe-Chang comments all fixed.

[RainbowMango]

/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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