Update nuget monorepo to 6.14.0 (#1509)

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

Author: renovate[bot]

Directory.Packages.props

@@ -27,8 +27,8 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageVersion Include="Newtonsoft.Json.Schema" Version="3.0.16" />
-    <PackageVersion Include="NuGet.ProjectModel" Version="6.10.0" />
-    <PackageVersion Include="NuGet.Versioning" Version="6.10.0" />
+    <PackageVersion Include="NuGet.ProjectModel" Version="6.14.0" />
+    <PackageVersion Include="NuGet.Versioning" Version="6.14.0" />
     <PackageVersion Include="packageurl-dotnet" Version="1.0.0" />
     <PackageVersion Include="Polly" Version="8.6.4" />
     <PackageVersion Include="SemanticVersioning" Version="2.0.2" />