Bump GraphQL and GraphQL.SystemTextJson

Bumps GraphQL from 8.8.0 to 8.8.1
Bumps GraphQL.SystemTextJson from 8.8.0 to 8.8.1

---
updated-dependencies:
- dependency-name: GraphQL
  dependency-version: 8.8.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: GraphQL.SystemTextJson
  dependency-version: 8.8.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -6,11 +6,11 @@
   <ItemGroup>
     <PackageVersion Include="FluentValidation" Version="12.1.1" />
     <PackageVersion Include="FluentValidation.DependencyInjectionExtensions" Version="12.1.1" />
-    <PackageVersion Include="GraphQL" Version="8.8.0" />
+    <PackageVersion Include="GraphQL" Version="8.8.1" />
     <PackageVersion Include="GraphQL.MicrosoftDI" Version="8.8.0" />
     <PackageVersion Include="GraphQL.Server.Transports.AspNetCore" Version="8.3.3" />
     <PackageVersion Include="GraphQL.Server.Ui.GraphiQL" Version="8.3.3" />
-    <PackageVersion Include="GraphQL.SystemTextJson" Version="8.8.0" />
+    <PackageVersion Include="GraphQL.SystemTextJson" Version="8.8.1" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.8" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.1" />