Bump flutter_lints from 3.0.2 to 4.0.0 in /code_sharing/client (#2283)

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) from 3.0.2 to 4.0.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="4799c49634"><code>4799c49</code></a> [flutter_lints] Rev to 4.0.0; prepare for publishing (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6695">#6695</a>)</li>
<li><a href="4e796783a2"><code>4e79678</code></a> [pointer_interceptor] Remove <code>implements</code> from app-facing package (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6699">#6699</a>)</li>
<li><a href="d670b2c38c"><code>d670b2c</code></a> Temporarily add empty header files to video_player_avfoundation so include di...</li>
<li><a href="a9f14bc819"><code>a9f14bc</code></a> Reverts &quot;[image_picker_ios] Adds Swift Package Manager compatibility to image...</li>
<li><a href="a444af56dd"><code>a444af5</code></a> [image_picker_ios] Adds Swift Package Manager compatibility to image_picker_i...</li>
<li><a href="09a373f211"><code>09a373f</code></a> [video_player_avfoundation] Adds Swift Package Manager compatibility (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6675">#6675</a>)</li>
<li><a href="0167b51e5f"><code>0167b51</code></a> [ios_platform_images] Add Swift Package Manager support (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6684">#6684</a>)</li>
<li><a href="8de142d33b"><code>8de142d</code></a> [path_provider] Add Swift Package Manager support (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6680">#6680</a>)</li>
<li><a href="4595c41373"><code>4595c41</code></a> [go_router] guard context access in then clauses (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6685">#6685</a>)</li>
<li><a href="8df8b5ff3d"><code>8df8b5f</code></a> [camera] Ignore implementation imports outside of lib (<a href="https://github.com/flutter/packages/tree/main/packages/issues/6191">#6191</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/flutter/packages/commits/flutter_lints-v4.0.0/packages">compare view</a></li>
</ul>
</details>
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code_sharing/client/pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
     path: ../shared
 
 dev_dependencies:
-  flutter_lints: ^3.0.0
+  flutter_lints: ^4.0.0
   flutter_test:
     sdk: flutter