chore(deps): update dependency fluentassertions to v7 (#615)

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

Author: renovate[bot]

test/Directory.Build.props

@@ -7,7 +7,7 @@
     <PackageReference Include="coverlet.collector" PrivateAssets="all" Version="6.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="FluentAssertions" Version="6.12.2"/>
+    <PackageReference Include="FluentAssertions" Version="7.0.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0"/>
     <PackageReference Include="Moq" Version="4.20.72"/>
     <PackageReference Include="xunit" Version="2.9.2"/>