Update to EmptyFiles 8.9.0

Author: SimonCropp

src/Directory.Packages.props

@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageVersion Include="Argon" Version="0.27.0" />
     <PackageVersion Include="Caseless.Fody" Version="1.9.1" />
-    <PackageVersion Include="EmptyFiles" Version="8.8.0" />
+    <PackageVersion Include="EmptyFiles" Version="8.9.0" />
     <PackageVersion Include="Fody" Version="6.9.2" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="27.0.2" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />