Bump go_router from 7.1.1 to 8.0.0 in /form_app (#1873)

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[//]: # (dependabot-end)

Bumps
[go_router](https://github.com/flutter/packages/tree/main/packages) from
7.1.1 to 8.0.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="010ba50128"><code>010ba50</code></a>
[go_router] Refactors imperative APIs and browser history (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4134">#4134</a>)</li>
<li><a
href="e37dd83c91"><code>e37dd83</code></a>
[various] Add <code>http</code> 1.0 compatibility (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4147">#4147</a>)</li>
<li><a
href="f1e628c07c"><code>f1e628c</code></a>
[go_router_builder] Accept required parameters not in path (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4039">#4039</a>)</li>
<li><a
href="d83ab7fe4e"><code>d83ab7f</code></a>
[pigeon] Require analyzer 5.13.0, prepare for NamedType refactoring. (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4127">#4127</a>)</li>
<li><a
href="a84b2c2ac3"><code>a84b2c2</code></a>
[ci] Exclude maps unit tests on Windows (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4152">#4152</a>)</li>
<li><a
href="da72219048"><code>da72219</code></a>
remove unnecessary typed_data imports (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4136">#4136</a>)</li>
<li><a
href="dba76d4e0e"><code>dba76d4</code></a>
[local_auth_android] Bump androidx.fragment to 1.5.7 and androidx.core
to 1.1...</li>
<li><a
href="3c3c980df1"><code>3c3c980</code></a>
[google_maps] Endorses package:google_maps_flutter_web. (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4124">#4124</a>)</li>
<li><a
href="81e3428752"><code>81e3428</code></a>
[ci] Removes bespoke web scripts. (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4129">#4129</a>)</li>
<li><a
href="9bf2dbcdfb"><code>9bf2dbc</code></a>
[webview_flutter]: fix typo (<a
href="https://github.com/flutter/packages/tree/main/packages/issues/4070">#4070</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/flutter/packages/commits/go_router-v8.0.0/packages">compare
view</a></li>
</ul>
</details>
<br />


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form_app/pubspec.yaml

@@ -18,7 +18,7 @@ dependencies:
     git:
       url: https://github.com/google/flutter-desktop-embedding.git
       path: plugins/window_size
-  go_router: ^7.0.0
+  go_router: ^8.0.0
 
 dev_dependencies:
   analysis_defaults: