Update dependency FluentAssertions to 6.12.1 (#1288)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="Docker.DotNet" Version="3.125.15" />
-    <PackageVersion Include="FluentAssertions" Version="6.12.0" />
+    <PackageVersion Include="FluentAssertions" Version="6.12.1" />
     <PackageVersion Include="FluentAssertions.Analyzers" Version="0.32.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="8.0.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />