chore: modify the certificate validity period

[codecov[bot]]

Codecov Report

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

Project coverage is 64.54%. Comparing base (7d0db65) to head (247af04).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #7671 +/- ## ========================================== + Coverage 64.51% 64.54% +0.02% ========================================== Files 339 339 Lines 42204 42204 ========================================== + Hits 27229 27240 +11 + Misses 12595 12584 -11 Partials 2380 2380 ``` | [Flag](https://app.codecov.io/gh/apecloud/kubeblocks/pull/7671/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apecloud) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/apecloud/kubeblocks/pull/7671/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apecloud) | `64.54% <100.00%> (+0.02%)` | :arrow_up: | 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=apecloud#carryforward-flags-in-the-pull-request-comment) to find out more.

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