fix(deps): update dependency virtua to v0.21.0 (#235)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [virtua](https://togithub.com/inokawa/virtua) | [`0.20.5` ->
`0.21.0`](https://renovatebot.com/diffs/npm/virtua/0.20.5/0.21.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/virtua/0.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/virtua/0.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/virtua/0.20.5/0.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/virtua/0.20.5/0.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

@coderabbitai: ignore

---

### Release Notes

<details>
<summary>inokawa/virtua (virtua)</summary>

### [`v0.21.0`](https://togithub.com/inokawa/virtua/releases/tag/0.21.0)

[Compare
Source](https://togithub.com/inokawa/virtua/compare/0.20.5...0.21.0)

- **BREAKING CHANGE**: RTL support for horizontal virtualization in
Chrome earlier than v85 was dropped. Use older version if needed.

#### What's Changed

- Migrate to vitest by [@&#8203;inokawa](https://togithub.com/inokawa)
in
[https://github.com/inokawa/virtua/pull/327](https://togithub.com/inokawa/virtua/pull/327)
- Improve wheel event handling by
[@&#8203;inokawa](https://togithub.com/inokawa) in
[https://github.com/inokawa/virtua/pull/328](https://togithub.com/inokawa/virtua/pull/328)
- Refactor scroll normalization and drop RTL support for legacy Chrome
by [@&#8203;inokawa](https://togithub.com/inokawa) in
[https://github.com/inokawa/virtua/pull/329](https://togithub.com/inokawa/virtua/pull/329)
- Add story with auto-animate by
[@&#8203;inokawa](https://togithub.com/inokawa) in
[https://github.com/inokawa/virtua/pull/330](https://togithub.com/inokawa/virtua/pull/330)
- Support iframe by [@&#8203;inokawa](https://togithub.com/inokawa) in
[https://github.com/inokawa/virtua/pull/331](https://togithub.com/inokawa/virtua/pull/331)

**Full Changelog**:
inokawa/virtua@0.20.5...0.21.0

</details>

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package.json

@@ -38,7 +38,7 @@
  "react-dom": "18.2.0",
  "react-easy-crop": "5.0.4",
  "swr": "2.2.4",
- "virtua": "0.20.5"
+ "virtua": "0.21.0"
  },
  "devDependencies": {
  "@fontsource/material-icons": "5.0.11",