Bump System.CodeDom from 7.0.0 to 8.0.0 (#515)

Bumps [System.CodeDom](https://github.com/dotnet/runtime) from 7.0.0 to 8.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.0...v8.0.0)

---
updated-dependencies:
- dependency-name: System.CodeDom
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Microsoft.Build.Tasks.Core" Version="$(MicrosoftBuildPackageVersion)" />
     <PackageVersion Include="Microsoft.Win32.Registry" Version="5.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageVersion Include="System.CodeDom" Version="7.0.0" />
+    <PackageVersion Include="System.CodeDom" Version="8.0.0" />
     <PackageVersion Include="System.Collections.Immutable" Version="7.0.0" />
     <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="7.0.0" Condition=" '$(TargetFramework)' != 'net46' " />
     <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="4.11.1" Condition=" '$(TargetFramework)' == 'net46' " />