Bump FluentAssertions from 6.12.0 to 6.12.1

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 6.12.0 to 6.12.1.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@6.12.0...6.12.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -44,7 +44,7 @@
   <ItemGroup Label="Test Only Packages" Condition=" '$(TestOnlyPackagesEnabled)' == 'true' ">
     <PackageVersion Include="coverlet.collector"                                Version="6.0.2" />
     <PackageVersion Include="coverlet.msbuild"                                  Version="6.0.2" />
-    <PackageVersion Include="FluentAssertions"                                  Version="6.12.0" />
+    <PackageVersion Include="FluentAssertions"                                  Version="6.12.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk"                            Version="17.11.1" />
     <PackageVersion Include="System.IO.Abstractions.TestingHelpers"             Version="$(SystemIOAbstractionsVersion)" />
     <PackageVersion Include="xunit"                                             Version="2.9.0" />