Bump Nerdbank.GitVersioning from 3.8.118 to 3.9.50

---
updated-dependencies:
- dependency-name: Nerdbank.GitVersioning
  dependency-version: 3.9.50
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Build.props

@@ -2,7 +2,7 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <PackageReference Include="Nerdbank.GitVersioning">
-      <Version>3.8.118</Version>
+      <Version>3.9.50</Version>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="DotNet.ReproducibleBuilds" Version="1.2.39" PrivateAssets="All"/>