Bump FluentAssertions from 6.12.0 to 6.12.1 (#24)

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

Author: dependabot[bot]

test/Directory.Packages.props

@@ -5,7 +5,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="coverlet.collector" Version="6.0.2" />
-    <PackageVersion Include="FluentAssertions" Version="6.12.0" />
+    <PackageVersion Include="FluentAssertions" Version="6.12.1" />
     <PackageVersion Include="Microsoft.AspNetCore" Version="2.2.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="2.2.0" />
     <PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="8.0.8" />