Bump Polyfill from 9.7.7 to 10.4.0

---
updated-dependencies:
- dependency-name: Polyfill
  dependency-version: 10.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -7,7 +7,7 @@
     <PackageVersion Include="ktsu.ImGui.App" Version="2.4.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.203" />
     <PackageVersion Include="Microsoft.SourceLink.AzureRepos.Git" Version="10.0.203" />
-    <PackageVersion Include="Polyfill" Version="9.7.7" />
+    <PackageVersion Include="Polyfill" Version="10.4.0" />
     <PackageVersion Include="System.Numerics.Vectors" Version="4.6.1" />
   </ItemGroup>
 </Project>