Bump GraphQL and GraphQL.MicrosoftDI (#292)

Bumps GraphQL from 8.6.0 to 8.7.0
Bumps GraphQL.MicrosoftDI from 8.6.0 to 8.7.0

---
updated-dependencies:
- dependency-name: GraphQL
  dependency-version: 8.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: GraphQL.MicrosoftDI
  dependency-version: 8.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

GraphQLNetExample/GraphQLNetExample.csproj

@@ -7,8 +7,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GraphQL" Version="8.6.0" />
-    <PackageReference Include="GraphQL.MicrosoftDI" Version="8.6.0" />
+    <PackageReference Include="GraphQL" Version="8.7.0" />
+    <PackageReference Include="GraphQL.MicrosoftDI" Version="8.7.0" />
     <PackageReference Include="GraphQL.Server.Transports.AspNetCore" Version="8.3.1" />
     <PackageReference Include="GraphQL.Server.Ui.Altair" Version="8.3.2" />
     <PackageReference Include="GraphQL.SystemTextJson" Version="8.6.0" />