chore(deps): update dependency fluentassertions to 8.7.1

Author: renovate[bot]

src/directory.packages.props

@@ -24,7 +24,7 @@
 
   <ItemGroup>
     <PackageVersion Include="Tmds.ExecFunction" Version="0.8.0" />
-    <PackageVersion Include="FluentAssertions" Version="8.6.0" />
+    <PackageVersion Include="FluentAssertions" Version="8.7.1" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.4" />
     <PackageVersion Include="coverlet.collector" Version="6.0.4" />