chore(deps): update dependency nerdbank.gitversioning to 3.9.50

Author: renovate[bot]

src/Directory.Packages.props

@@ -6,7 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="Nerdbank.GitVersioning" Version="3.8.118" />
+    <PackageVersion Include="Nerdbank.GitVersioning" Version="3.9.50" />
     <PackageVersion Include="NuGet.Common" Version="6.14.0" />
     <PackageVersion Include="NuGet.Protocol" Version="6.14.0" />
     <PackageVersion Include="Splat" Version="17.1.1" />