Adopt gotestsum

[khanhtc1202]

What type of PR is this?

/kind feature

What this PR does / why we need it:

I want to introduce gotestsum as the test output format instead of the current gotest tool.

Follow closed PR #4850

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[khanhtc1202]

/cc @RainbowMango

[codecov-commenter]

Codecov Report

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

Project coverage is 53.04%. Comparing base (f3b943d) to head (3ccbf13).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4853 +/- ## ========================================== - Coverage 53.06% 53.04% -0.02% ========================================== Files 250 250 Lines 20371 20371 ========================================== - Hits 10809 10806 -3 - Misses 8845 8847 +2 - Partials 717 718 +1 ``` | [Flag](https://app.codecov.io/gh/karmada-io/karmada/pull/4853/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/4853/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=karmada-io) | `53.04% <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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[karmada-bot]

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