chore(deps): update react monorepo to v19.2.6 (#764)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [react](https://react.dev/)
([source](https://redirect.github.com/facebook/react/tree/HEAD/packages/react))
| [`19.2.5` →
`19.2.6`](https://renovatebot.com/diffs/npm/react/19.2.5/19.2.6) |
![age](https://developer.mend.io/api/mc/badges/age/npm/react/19.2.6?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/react/19.2.5/19.2.6?slim=true)
|
| [react-dom](https://react.dev/)
([source](https://redirect.github.com/facebook/react/tree/HEAD/packages/react-dom))
| [`19.2.5` →
`19.2.6`](https://renovatebot.com/diffs/npm/react-dom/19.2.5/19.2.6) |
![age](https://developer.mend.io/api/mc/badges/age/npm/react-dom/19.2.6?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/react-dom/19.2.5/19.2.6?slim=true)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/4) for more information.

---

### Release Notes

<details>
<summary>facebook/react (react)</summary>

###
[`v19.2.6`](https://redirect.github.com/facebook/react/releases/tag/v19.2.6):
19.2.6 (May 6th, 2026)

[Compare
Source](https://redirect.github.com/facebook/react/compare/v19.2.5...v19.2.6)

#### React Server Components

- Type hardening and performance improvements
(by [@&#8203;eps1lon](https://redirect.github.com/eps1lon) and
[@&#8203;unstubbable](https://redirect.github.com/unstubbable))

</details>

---

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Author: bootjp