Bump to xamarin/LibZipSharp/main@521b54ec [1.0.23] (#109)

Changes: dotnet/android-libzipsharp@1.0.22...1.0.23

  * dotnet/android-libzipsharp@521b54e Include Windows pdb in Nuget (#82)
  * dotnet/android-libzipsharp@9853933: [ci] Update packageSources in NuGet.config (#80)

Author: dellis1972

src/Microsoft.Android.Build.BaseTasks/MSBuildReferences.projitems

@@ -6,7 +6,7 @@
   <PropertyGroup>
     <MSBuildReferenceVersion>15.1.0.0</MSBuildReferenceVersion>
     <MSBuildPackageReferenceVersion>16.5</MSBuildPackageReferenceVersion>
-    <LibZipSharpVersion>1.0.22</LibZipSharpVersion>
+    <LibZipSharpVersion>1.0.23</LibZipSharpVersion>
   </PropertyGroup>
 
   <ItemGroup Condition="$([MSBuild]::IsOSPlatform('windows'))" >