Bump System.Composition from 7.0.0 to 9.0.1

Bumps [System.Composition](https://github.com/dotnet/runtime) from 7.0.0 to 9.0.1.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.0...v9.0.1)

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

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

Author: dependabot[bot]

Source/Libraries/PluginHost/PluginHost.csproj

@@ -33,7 +33,7 @@
       <Version>7.0.0</Version>
     </PackageReference>
     <PackageReference Include="System.Composition">
-      <Version>7.0.0</Version>
+      <Version>9.0.1</Version>
     </PackageReference>
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
     <PackageReference Include="System.Numerics.Vectors">