upgrade: update dependency flutter to v3.19.2 (#467)

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This PR contains the following updates:

| Package | Update | Change | Pending |
|---|---|---|---|
| [flutter](https://flutter.dev)
([source](https://togithub.com/flutter/flutter)) | minor | `3.16.0` ->
`3.19.2` | `3.19.3` |

---

### Release Notes

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

###
[`v3.19.2`](https://togithub.com/flutter/flutter/compare/3.19.1...3.19.2)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.19.1...3.19.2)

###
[`v3.19.1`](https://togithub.com/flutter/flutter/compare/3.19.0...3.19.1)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.19.0...3.19.1)

###
[`v3.19.0`](https://togithub.com/flutter/flutter/compare/3.16.9...3.19.0)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.9...3.19.0)

###
[`v3.16.9`](https://togithub.com/flutter/flutter/compare/3.16.8...3.16.9)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.8...3.16.9)

###
[`v3.16.8`](https://togithub.com/flutter/flutter/compare/3.16.7...3.16.8)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.7...3.16.8)

###
[`v3.16.7`](https://togithub.com/flutter/flutter/compare/3.16.6...3.16.7)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.6...3.16.7)

###
[`v3.16.6`](https://togithub.com/flutter/flutter/compare/3.16.5...3.16.6)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.5...3.16.6)

###
[`v3.16.5`](https://togithub.com/flutter/flutter/compare/3.16.4...3.16.5)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.4...3.16.5)

###
[`v3.16.4`](https://togithub.com/flutter/flutter/compare/3.16.3...3.16.4)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.3...3.16.4)

###
[`v3.16.3`](https://togithub.com/flutter/flutter/compare/3.16.2...3.16.3)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.2...3.16.3)

###
[`v3.16.2`](https://togithub.com/flutter/flutter/compare/3.16.1...3.16.2)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.1...3.16.2)

###
[`v3.16.1`](https://togithub.com/flutter/flutter/compare/3.16.0...3.16.1)

[Compare
Source](https://togithub.com/flutter/flutter/compare/3.16.0...3.16.1)

</details>

---

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.tool-versions

@@ -1,2 +1,2 @@
 dart 3.3.1
-flutter 3.16.0-stable
+flutter 3.19.2-stable