Update Microsoft.DotNet.RemoteExecutor

tests/Directory.Build.targets

@@ -22,8 +22,8 @@
     <PackageReference Update="BenchmarkDotNet.Diagnostics.Windows" Version="0.13.0" Condition="'$(IsWindows)'=='true'" />
     <PackageReference Update="Colourful" Version="3.0.0" />
     <PackageReference Update="Magick.NET-Q16-AnyCPU" Version="12.2.2" />
-    <PackageReference Update="Microsoft.DotNet.RemoteExecutor" Version="6.0.0-beta.21311.3" />
-    <PackageReference Update="Microsoft.DotNet.XUnitExtensions" Version="6.0.0-beta.21311.3" />
+    <PackageReference Update="Microsoft.DotNet.RemoteExecutor" Version="8.0.0-beta.23580.1" />
+    <PackageReference Update="Microsoft.DotNet.XUnitExtensions" Version="8.0.0-beta.23580.1" />
     <PackageReference Update="Moq" Version="4.14.6" />
     <PackageReference Update="NetVips" Version="2.0.1" />
     <PackageReference Update="NetVips.Native" Version="8.11.0" />