chore(deps): Bump xunit in /packages/@jsii/dotnet-runtime-test/test

Bumps [xunit](https://github.com/xunit/xunit) from 2.5.2 to 2.5.3.
- [Commits](xunit/xunit@2.5.2...2.5.3)

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

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

packages/@jsii/Directory.Build.targets

@@ -12,7 +12,7 @@
 
     <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Update="NSubstitute" Version="5.1.0" />
-    <PackageReference Update="xunit" Version="2.5.2" />
+    <PackageReference Update="xunit" Version="2.5.3" />
     <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
     <PackageReference Update="XunitXml.TestLogger" Version="3.1.17" />