Bump FluentAssertions from 6.12.2 to 7.0.0

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 6.12.2 to 7.0.0.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@6.12.2...7.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Directory.Packages.props

@@ -15,7 +15,7 @@
     <PackageVersion Include="FastEndpoints.ApiExplorer" Version="2.2.0" />
     <PackageVersion Include="FastEndpoints.Swagger" Version="5.31.0" />
     <PackageVersion Include="FastEndpoints.Swagger.Swashbuckle" Version="2.2.0" />
-    <PackageVersion Include="FluentAssertions" Version="6.12.2" />
+    <PackageVersion Include="FluentAssertions" Version="7.0.0" />
     <PackageVersion Include="MailKit" Version="4.9.0" />
     <PackageVersion Include="MediatR" Version="12.4.1" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.0" />