Bump xunit from 2.5.0 to 2.5.1 (#359)

Bumps [xunit](https://github.com/xunit/xunit) from 2.5.0 to 2.5.1.
- [Commits](https://github.com/xunit/xunit/compare/2.5.0...2.5.1)

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

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

src/Directory.Packages.props

@@ -17,7 +17,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>
-    <PackageVersion Include="xunit" Version="2.5.0" />
+    <PackageVersion Include="xunit" Version="2.5.1" />
     <PackageVersion Include="Akka.Persistence.TCK" Version="$(AkkaVersion)" />
     <PackageVersion Include="Mongo2Go" Version="2.2.16" />
     <PackageVersion Include="System.Net.NetworkInformation" Version="4.3.0" />