Bump lints from 4.0.0 to 5.0.0 in /code_sharing/shared (#2456)

Bumps [lints](https://github.com/dart-lang/lints) from 4.0.0 to 5.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dart-lang/lints/releases">lints's releases</a>.</em></p>
<blockquote>
<h2>package:lints v5.0.0</h2>
<ul>
<li><code>recommended</code>:
<ul>
<li>added <a href="https://dart.dev/tools/linter-rules/invalid_runtime_check_with_js_interop_types">invalid_runtime_check_with_js_interop_types</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/188">dart-lang/lints#188</a>)</li>
<li>added <a href="https://dart.dev/lints/unnecessary_library_name">unnecessary_library_name</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/181">dart-lang/lints#181</a>)</li>
<li>removed <a href="https://dart.dev/tools/linter-rules/avoid_null_checks_in_equality_operators">avoid_null_checks_in_equality_operators</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/200">dart-lang/lints#200</a>)</li>
</ul>
</li>
<li>Updated the SDK lower-bound to 3.5.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/dart-lang/lints/blob/main/CHANGELOG.md">lints's changelog</a>.</em></p>
<blockquote>
<h2>5.0.0</h2>
<ul>
<li><code>recommended</code>:
<ul>
<li>added <a href="https://dart.dev/tools/linter-rules/invalid_runtime_check_with_js_interop_types">invalid_runtime_check_with_js_interop_types</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/188">dart-lang/lints#188</a>)</li>
<li>added <a href="https://dart.dev/lints/unnecessary_library_name">unnecessary_library_name</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/181">dart-lang/lints#181</a>)</li>
<li>removed <a href="https://dart.dev/tools/linter-rules/avoid_null_checks_in_equality_operators">avoid_null_checks_in_equality_operators</a> (<a href="https://redirect.github.com/dart-lang/lints/issues/200">dart-lang/lints#200</a>)</li>
</ul>
</li>
<li>Updated the SDK lower-bound to 3.5.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/dart-lang/lints/commit/af68bf0cbad88002a2ae19ee8db37b64eb120c32"><code>af68bf0</code></a> rev to 5.0.0 in preparation for publishing (<a href="https://redirect.github.com/dart-lang/lints/issues/210">#210</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/9e4fd7deefa632f4b251fdba27966a661f41f211"><code>9e4fd7d</code></a> Fixes formatting error in the rules.md table (<a href="https://redirect.github.com/dart-lang/lints/issues/206">#206</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/6580f83e4cf4172feb2dd5f7351077cde3a74e3a"><code>6580f83</code></a> Remove avoid_null_checks_in_equality_operators from recommended (<a href="https://redirect.github.com/dart-lang/lints/issues/201">#201</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/894b5006c463d2e1967fba3a8c3540d8ae249061"><code>894b500</code></a> add invalid_runtime_check_with_js_interop_types to the recommended lint set (...</li>
<li><a href="https://github.com/dart-lang/lints/commit/8f93c7998ac32bd07fcf4c4fdda60d164a2cb13a"><code>8f93c79</code></a> add unnecessary_library_name to recommended (<a href="https://redirect.github.com/dart-lang/lints/issues/198">#198</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/f6b5d36485f6f067ac0f5a7193006ebe82ee6113"><code>f6b5d36</code></a> Bump dart-lang/setup-dart from 1.6.4 to 1.6.5 (<a href="https://redirect.github.com/dart-lang/lints/issues/194">#194</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/09a9c88a533adf69ef7ac635503d3a7fb489e901"><code>09a9c88</code></a> Bump actions/checkout from 4.1.6 to 4.1.7 (<a href="https://redirect.github.com/dart-lang/lints/issues/193">#193</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/baaaa5616370243c3c8c6a9f67fb83d26bdac552"><code>baaaa56</code></a> Bump actions/checkout from 4.1.4 to 4.1.6 (<a href="https://redirect.github.com/dart-lang/lints/issues/191">#191</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/b254c7e374b0328d4ebfe4f32638fd5e58a81b59"><code>b254c7e</code></a> Update README.md (<a href="https://redirect.github.com/dart-lang/lints/issues/189">#189</a>)</li>
<li><a href="https://github.com/dart-lang/lints/commit/5fef5082a1505d0dbd5fa6f3371fcdee090649ff"><code>5fef508</code></a> Tighten up the <code>gen_docs.dart</code> script. (<a href="https://redirect.github.com/dart-lang/lints/issues/187">#187</a>)</li>
<li>See full diff in <a href="https://github.com/dart-lang/lints/compare/v4.0.0...v5.0.0">compare view</a></li>
</ul>
</details>
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code_sharing/shared/lib/shared.dart

@@ -1,4 +1,4 @@
 /// Common data models required by our client and server.
-library shared;
+library;
 
 export 'src/models.dart';

code_sharing/shared/pubspec.yaml

@@ -13,5 +13,5 @@ dev_dependencies:
   build_runner: ^2.2.1
   freezed: ^2.1.1
   json_serializable: ^6.4.0
-  lints: ">=2.0.0 <5.0.0"
+  lints: ^5.0.0
   test: ^1.16.0