Update dependency msw to v2.12.0 (#1446)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [msw](https://mswjs.io)
([source](https://redirect.github.com/mswjs/msw)) | [`2.11.6` ->
`2.12.0`](https://renovatebot.com/diffs/npm/msw/2.11.6/2.12.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/msw/2.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/msw/2.11.6/2.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>mswjs/msw (msw)</summary>

###
[`v2.12.0`](https://redirect.github.com/mswjs/msw/releases/tag/v2.12.0)

[Compare
Source](https://redirect.github.com/mswjs/msw/compare/v2.11.6...v2.12.0)

#### v2.12.0 (2025-11-05)

##### Features

- support server-sent events (SSE)
([#&#8203;2299](https://redirect.github.com/mswjs/msw/issues/2299))
([`d5a16d8`](https://redirect.github.com/mswjs/msw/commit/d5a16d8fdf0a9fa5e1ed0d66133ed87214d2e403))
[@&#8203;kettanaito](https://redirect.github.com/kettanaito)
[@&#8203;Andarist](https://redirect.github.com/Andarist)

</details>

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package-lock.json

@@ -72,7 +72,7 @@
     "express": "5.1.0",
     "finalhandler": "2.1.0",
     "husky": "9.1.7",
-    "msw": "2.11.6",
+    "msw": "2.12.0",
     "prettier": "3.6.2",
     "typedoc": "^0.28.14",
     "typedoc-plugin-markdown": "^4.3.0",