chore: remove unused package reference (#596)

Author: bdovaz

src/Directory.Packages.props

@@ -22,6 +22,5 @@
     <PackageVersion Include="Scriban" Version="6.5.0" />
     <PackageVersion Include="SharpZipLib" Version="1.4.2" />
     <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0" />
-    <PackageVersion Include="System.Linq.Async" Version="6.0.3" />
   </ItemGroup>
 </Project>