dev(narugo): add count limiter

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 89.28571% with 3 lines in your changes missing coverage. Please review.

Project coverage is 81.09%. Comparing base (2442371) to head (a212547). Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
cheesechaser/datapool/base.py	83.33%	2 Missing :warning:
cheesechaser/pipe/base.py	93.75%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #11 +/- ## ========================================== + Coverage 80.93% 81.09% +0.16% ========================================== Files 29 29 Lines 960 984 +24 ========================================== + Hits 777 798 +21 - Misses 183 186 +3 ``` | [Flag](https://app.codecov.io/gh/deepghs/cheesechaser/pull/11/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/deepghs/cheesechaser/pull/11/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs) | `81.09% <89.28%> (+0.16%)` | :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=deepghs#carryforward-flags-in-the-pull-request-comment) to find out more.

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