Bump xunit from 2.9.0 to 2.9.2 in the xunit group (#292)

Author: dependabot[bot]

Directory.Packages.props

@@ -47,7 +47,7 @@
     <PackageVersion Include="FluentAssertions"                                  Version="6.12.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk"                            Version="17.11.1" />
     <PackageVersion Include="System.IO.Abstractions.TestingHelpers"             Version="$(SystemIOAbstractionsVersion)" />
-    <PackageVersion Include="xunit"                                             Version="2.9.0" />
+    <PackageVersion Include="xunit"                                             Version="2.9.2" />
     <PackageVersion Include="xunit.runner.visualstudio"                         Version="2.8.2" />
   </ItemGroup>