Merge pull request #1570 from dotnet/dependabot/nuget/AsyncRx.NET/Nerdbank.GitVersioning-3.4.220

Author: dependabot-preview[bot]

AsyncRx.NET/Directory.build.props

@@ -28,7 +28,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All"/>
-    <PackageReference Include="Nerdbank.GitVersioning" Version="3.4.216" PrivateAssets="all" />
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.4.220" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(IsTestProject)' == 'true'">