Bump Nerdbank.GitVersioning from 3.4.216 to 3.4.220

Bumps [Nerdbank.GitVersioning](https://github.com/dotnet/Nerdbank.GitVersioning) from 3.4.216 to 3.4.220.
- [Release notes](https://github.com/dotnet/Nerdbank.GitVersioning/releases)
- [Commits](dotnet/Nerdbank.GitVersioning@v3.4.216...v3.4.220)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Source/Directory.Build.targets

@@ -14,7 +14,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(IsCloudBuild)' == 'true' and '$(DisableNerdBank)'!='true'">    
-    <PackageReference Include="Nerdbank.GitVersioning" Version="3.4.216" PrivateAssets="All"/>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.4.220" PrivateAssets="All"/>
   </ItemGroup>
 
 </Project>