upgrade: update dependency flutter to v3.27.4 (#654)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [flutter](https://flutter.dev)
([source](https://redirect.github.com/flutter/flutter)) | patch |
`3.27.3` -> `3.27.4` |

---

### Release Notes

<details>
<summary>flutter/flutter (flutter)</summary>

###
[`v3.27.4`](https://redirect.github.com/flutter/flutter/blob/HEAD/CHANGELOG.md#3274)

[Compare
Source](https://redirect.github.com/flutter/flutter/compare/3.27.3...3.27.4)

-
[flutter/162132](https://redirect.github.com/flutter/flutter/pull/162132)
On all platforms DropdownMenu's menuChildren might be placed somewhere
far from menuAnchor.

</details>

---

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---

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.tool-versions

@@ -1 +1 @@
-flutter 3.27.3-stable
+flutter 3.27.4-stable