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.Packages.props

@@ -17,7 +17,7 @@
         <GlobalPackageReference Include="Microsoft.VisualStudio.Threading.Analyzers"
                                 Version="17.14.15" />
         <GlobalPackageReference Include="Nerdbank.GitVersioning"
-                                Version="3.8.118" />
+                                Version="3.9.50" />
         <GlobalPackageReference Include="PolySharp"
                                 Version="1.15.0" />
         <GlobalPackageReference Include="StyleCop.Analyzers"