chore(deps): update dependency fluentassertions to 6.12.1

Author: renovate[bot]

src/Directory.build.props

@@ -37,7 +37,7 @@
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
 		<PackageReference Include="Xunit.StaFact" Version="1.1.11" />
 		<PackageReference Include="Verify.Xunit" Version="26.2.0" />
-		<PackageReference Include="FluentAssertions" Version="6.12.0" />
+		<PackageReference Include="FluentAssertions" Version="6.12.1" />
 		<PackageReference Include="PublicApiGenerator" Version="11.1.0" />
 		<PackageReference Include="coverlet.msbuild" Version="6.0.2" PrivateAssets="All" />
     </ItemGroup>