Bump build_runner from 2.4.7 to 2.4.8 in /auto_submit (#3411)

Bumps [build_runner](https://github.com/dart-lang/build) from 2.4.7 to 2.4.8.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dart-lang/build/releases">build_runner's releases</a>.</em></p>
<blockquote>
<h2>package:build_runner v2.4.8</h2>
<ul>
<li>Update README.md to point to the FAQ and other docs.</li>
<li>Print stack traces for <code>Error</code> subtype exceptions in non-verbose mode.</li>
<li>Support latest version of <code>package:js</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/dart-lang/build/commit/8e1cbf8f7b573dfe73790fbb8cf53062b3e5d452"><code>8e1cbf8</code></a> Support latest pkg:js in pkg:build_runner and pkg:build_web_compilers (<a href="https://github.com/dart-lang/build/issues/3640">#3640</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/0816f599ed6c99898e1f1a5c0f9aa6841956fb70"><code>0816f59</code></a> update build_modules to allow the 3.4 SDK (<a href="https://github.com/dart-lang/build/issues/3638">#3638</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/b5ea89c3436d2030418932e8557eaea7947ccb2a"><code>b5ea89c</code></a> Prepare to publish build_web_compilers (<a href="https://github.com/dart-lang/build/issues/3634">#3634</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/ca7f8815670e2cfbbe2ca0246b2f7f56726be301"><code>ca7f881</code></a> Always log stack traces for Error objects (<a href="https://github.com/dart-lang/build/issues/3586">#3586</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/80b65262c31645803047264388902a85280690aa"><code>80b6526</code></a> [build_test] update dependencies, prepare v2.2.2 release (<a href="https://github.com/dart-lang/build/issues/3626">#3626</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/1fccc73f176dc74c42c6f1f5a2c4e9ed7d71335f"><code>1fccc73</code></a> add a builder to clean up transitive digests (<a href="https://github.com/dart-lang/build/issues/3625">#3625</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/7368a7a26e71ac4c12a6f9c00ca2c47791d5ae88"><code>7368a7a</code></a> Stop depending on analyzer support for Dart &lt;2.12. (<a href="https://github.com/dart-lang/build/issues/3623">#3623</a>)</li>
<li><a href="https://github.com/dart-lang/build/commit/d885bc998bcfb829ab0f5f6cd129b5192ba08207"><code>d885bc9</code></a> Update docs to point at the FAQ and general docs (<a href="https://github.com/dart-lang/build/issues/3620">#3620</a>)</li>
<li>See full diff in <a href="https://github.com/dart-lang/build/compare/build_runner-v2.4.7...build_runner-v2.4.8">compare view</a></li>
</ul>
</details>
<br />

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</details>

auto_submit/pubspec.yaml

@@ -31,7 +31,7 @@ dependencies:
   mutex: 3.1.0
 
 dev_dependencies:
-  build_runner: 2.4.7
+  build_runner: 2.4.8
   json_serializable: 6.7.1
   flutter_lints: 3.0.1
   mockito: 5.4.4