Bump the kiota-dependencies group in /it/csharp with 1 update

Bumps the kiota-dependencies group in /it/csharp with 1 update: [Microsoft.Kiota.Serialization.Json](https://github.com/microsoft/kiota-serialization-json-dotnet).


Updates `Microsoft.Kiota.Serialization.Json` from 1.1.2 to 1.1.3
- [Release notes](https://github.com/microsoft/kiota-serialization-json-dotnet/releases)
- [Changelog](https://github.com/microsoft/kiota-serialization-json-dotnet/blob/main/CHANGELOG.md)
- [Commits](microsoft/kiota-serialization-json-dotnet@v1.1.2...v1.1.3)

---
updated-dependencies:
- dependency-name: Microsoft.Kiota.Serialization.Json
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kiota-dependencies
...

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

it/csharp/dotnet.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.Kiota.Authentication.Azure" Version="1.1.2" />
     <PackageReference Include="Microsoft.Kiota.Http.HttpClientLibrary" Version="1.3.4" />
     <PackageReference Include="Microsoft.Kiota.Serialization.Form" Version="1.1.1" />
-    <PackageReference Include="Microsoft.Kiota.Serialization.Json" Version="1.1.2" />
+    <PackageReference Include="Microsoft.Kiota.Serialization.Json" Version="1.1.3" />
     <PackageReference Include="Microsoft.kiota.Serialization.Multipart" Version="1.1.1" />
     <PackageReference Include="Microsoft.Kiota.Serialization.Text" Version="1.1.1" />