Bump Microsoft.CodeAnalysis from 4.1.0 to 4.2.0 (MvvmCross#4420)

Bumps [Microsoft.CodeAnalysis](https://github.com/dotnet/roslyn) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/dotnet/roslyn/releases)
- [Changelog](https://github.com/dotnet/roslyn/blob/main/docs/Breaking%20API%20Changes.md)
- [Commits](dotnet/roslyn@v4.1.0...v4.2.0)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Directory.Packages.props

@@ -16,7 +16,7 @@
     <PackageVersion Include="Xamarin.Google.Android.Material" Version="1.4.0.4" />
     <PackageVersion Include="Xamarin.GooglePlayServices.Basement" Version="117.6.0.2" />
     <PackageVersion Include="Xamarin.GooglePlayServices.Location" Version="119.0.1.1" />
-    <PackageVersion Include="Microsoft.CodeAnalysis" Version="4.1.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis" Version="4.2.0" />
     <PackageVersion Include="Xamarin.Build.Download" Version="0.11.2" />
     <PackageVersion Include="Xamarin.Forms.Platform.WPF" Version="5.0.0.2478" />
     <PackageVersion Include="Xamarin.Forms" Version="5.0.0.2478" />