dev(narugo): add konacha webp source

[codecov[bot]]

Codecov Report

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

Project coverage is 80.96%. Comparing base (678fdae) to head (7ebe49b). Report is 4 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #8 +/- ## ========================================== + Coverage 80.77% 80.96% +0.18% ========================================== Files 29 29 Lines 952 956 +4 ========================================== + Hits 769 774 +5 + Misses 183 182 -1 ``` | [Flag](https://app.codecov.io/gh/deepghs/cheesechaser/pull/8/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/8/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs) | `80.96% <100.00%> (+0.18%)` | :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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