Bump xunit.analyzers from 1.20.0 to 1.21.0 in the xunit group

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


Updates `xunit.analyzers` from 1.20.0 to 1.21.0
- [Commits](xunit/xunit.analyzers@1.20.0...1.21.0)

---
updated-dependencies:
- dependency-name: xunit.analyzers
  dependency-version: 1.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: xunit
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageVersion Include="xunit" Version="2.9.3" />
-    <PackageVersion Include="xunit.analyzers" Version="1.20.0" />
+    <PackageVersion Include="xunit.analyzers" Version="1.21.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.2" />
     <GlobalPackageReference Include="AsyncFixer" Version="1.6.0" />
     <GlobalPackageReference Include="Meziantou.Analyzer" Version="2.0.193" />