chore: support to h-scale shard count

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.12022% with 62 lines in your changes missing coverage. Please review.

Project coverage is 61.60%. Comparing base (16cc9f3) to head (073c2e9). Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/operations/ops_progress_util.go	67.14%	18 Missing and 5 partials :warning:
pkg/operations/ops_comp_helper.go	67.74%	13 Missing and 7 partials :warning:
apis/operations/v1alpha1/opsrequest_validation.go	0.00%	8 Missing :warning:
pkg/operations/horizontal_scaling.go	81.08%	5 Missing and 2 partials :warning:
pkg/controllerutil/sharding_utils.go	0.00%	3 Missing :warning:
controllers/apps/transformer_cluster_component.go	66.66%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #8518 +/- ## ========================================== + Coverage 60.36% 61.60% +1.23% ========================================== Files 357 376 +19 Lines 42553 45877 +3324 ========================================== + Hits 25688 28262 +2574 - Misses 14534 15051 +517 - Partials 2331 2564 +233 ``` | [Flag](https://app.codecov.io/gh/apecloud/kubeblocks/pull/8518/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/8518/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apecloud) | `61.60% <66.12%> (+1.23%)` | :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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