Bump FluentAssertions from 6.10.0 to 6.11.0 (#300)

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 6.10.0 to 6.11.0.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](https://github.com/fluentassertions/fluentassertions/compare/6.10.0...6.11.0)

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/Directory.Packages.props

@@ -13,7 +13,7 @@
   </ItemGroup>
   <!-- Test dependencies -->
   <ItemGroup>
-    <PackageVersion Include="FluentAssertions" Version="6.10.0" />
+    <PackageVersion Include="FluentAssertions" Version="6.11.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
     <PackageVersion Include="xunit" Version="$(XunitVersion)" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="$(XunitVersion)" />