Bump FluentValidation from 11.5.2 to 11.6.0 in /src

Bumps [FluentValidation](https://github.com/JeremySkinner/fluentvalidation) from 11.5.2 to 11.6.0.
- [Release notes](https://github.com/JeremySkinner/fluentvalidation/releases)
- [Changelog](https://github.com/FluentValidation/FluentValidation/blob/main/Changelog.txt)
- [Commits](FluentValidation/FluentValidation@11.5.2...11.6.0)

---
updated-dependencies:
- dependency-name: FluentValidation
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/IoTHub.Portal.Client/IoTHub.Portal.Client.csproj

@@ -17,7 +17,7 @@
   <ItemGroup>
     <PackageReference Include="ChartJs.Blazor.Fork" Version="2.0.2" />
     <PackageReference Include="Blazored.LocalStorage" Version="4.3.0" />
-    <PackageReference Include="FluentValidation" Version="11.5.2" />
+    <PackageReference Include="FluentValidation" Version="11.6.0" />
     <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.9" />
     <PackageReference Include="Microsoft.AspNetCore.Components.Web.Extensions" Version="5.0.0-preview9.20513.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4">

src/IoTHub.Portal.Server/IoTHub.Portal.Server.csproj

@@ -39,7 +39,7 @@
     <PackageReference Include="Azure.Messaging.EventHubs" Version="5.9.2" />
     <PackageReference Include="Azure.Messaging.EventHubs.Processor" Version="5.9.2" />
     <PackageReference Include="Azure.Storage.Blobs" Version="12.16.0" />
-    <PackageReference Include="FluentValidation" Version="11.5.2" />
+    <PackageReference Include="FluentValidation" Version="11.6.0" />
     <PackageReference Include="CsvHelper" Version="30.0.1" />
     <PackageReference Include="Hellang.Middleware.ProblemDetails" Version="6.5.1" />
     <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.21.0" />