Bump XunitVersion from 2.5.0 to 2.5.1 (#6920)

* Bump XunitVersion from 2.5.0 to 2.5.1

Bumps `XunitVersion` from 2.5.0 to 2.5.1.

Updates `xunit` from 2.5.0 to 2.5.1
- [Commits](xunit/xunit@2.5.0...2.5.1)

Updates `xunit.runner.visualstudio` from 2.5.0 to 2.5.1
- [Commits](xunit/xunit@2.5.0...2.5.1)

Updates `xunit.runner.utility` from 2.5.0 to 2.5.1
- [Commits](xunit/xunit@2.5.0...2.5.1)

---
updated-dependencies:
- dependency-name: xunit
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: xunit.runner.visualstudio
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: xunit.runner.utility
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Temporary fix for xUnit technical debt

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Gregorius Soedharmo <arkatufus@yahoo.com>

src/Directory.Build.props

@@ -6,16 +6,20 @@
     <PackageIcon>akkalogo.png</PackageIcon>
     <PackageProjectUrl>https://github.com/akkadotnet/akka.net</PackageProjectUrl>
     <PackageLicenseUrl>https://github.com/akkadotnet/akka.net/blob/master/LICENSE</PackageLicenseUrl>
-    <NoWarn>$(NoWarn);CS1591;xUnit1013</NoWarn>
+    <!-- 
+      xUnit1031 is a temporary fix, we will need to pay this technical debt 
+      and make everything fully async in the future 
+    -->
+    <NoWarn>$(NoWarn);CS1591;xUnit1013;xUnit1031</NoWarn>
     <PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
   <!-- Set the language version for C# if we're not inside an F# project -->
   <PropertyGroup Condition="'$(MSBuildProjectExtension)' == '.csproj'">
     <LangVersion>11.0</LangVersion>
   </PropertyGroup>
   <PropertyGroup>
-    <XunitVersion>2.5.0</XunitVersion>
-    <XunitRunnerVersion>2.5.0</XunitRunnerVersion>
+    <XunitVersion>2.5.1</XunitVersion>
+    <XunitRunnerVersion>2.5.1</XunitRunnerVersion>
     <TestSdkVersion>17.7.2</TestSdkVersion>
     <HyperionVersion>0.12.2</HyperionVersion>
     <NewtonsoftJsonVersion>[13.0.1,)</NewtonsoftJsonVersion>