Build(deps): bump xunit from 2.9.0 to 2.9.1 in the test group (#26)

Bumps the test group with 1 update: [xunit](https://github.com/xunit/xunit).


Updates `xunit` from 2.9.0 to 2.9.1
- [Commits](xunit/xunit@2.9.0...2.9.1)

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

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

Author: dependabot[bot]

Directory.Packages.props

@@ -29,7 +29,7 @@
     <PackageVersion Include="Temporalio.Extensions.Hosting" Version="1.3.0"/>
     <PackageVersion Include="Temporalio.Extensions.DiagnosticSource" Version="1.3.0"/>
     <PackageVersion Include="Temporalio.Extensions.OpenTelemetry" Version="1.3.0"/>
-    <PackageVersion Include="xunit" Version="2.9.0"/>
+    <PackageVersion Include="xunit" Version="2.9.1"/>
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2"/>
   </ItemGroup>
 </Project>