chore(deps): bump FluentAssertions from 7.0.0 to 8.0.0

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 7.0.0 to 8.0.0.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@7.0.0...8.0.0)

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Build.props

@@ -60,7 +60,7 @@
 	</ItemGroup>
 
 	<ItemGroup Condition="$(MSBuildProjectName.EndsWith('Tests'))">
-		<PackageReference Include="FluentAssertions" Version="7.0.0"/>
+		<PackageReference Include="FluentAssertions" Version="8.0.0"/>
 		<PackageReference Include="MSTest.TestAdapter" Version="3.7.1"/>
 		<PackageReference Include="MSTest.TestFramework" Version="3.7.1"/>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0"/>