chore(deps): update dependency sonaranalyzer.csharp to 10.21.0.135717 (#599)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -11,7 +11,7 @@
     <GlobalPackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.14.15" />
     <GlobalPackageReference Include="NetEvolve.Defaults" Version="1.6.0" />
     <GlobalPackageReference Include="Roslynator.Analyzers" Version="4.15.0" />
-    <GlobalPackageReference Include="SonarAnalyzer.CSharp" Version="10.20.0.135146" />
+    <GlobalPackageReference Include="SonarAnalyzer.CSharp" Version="10.21.0.135717" />
   </ItemGroup>
   <ItemGroup>
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.5.2" />