Remove unused using directives in two files

Cleaned up unused namespaces to improve code maintainability:
- Removed `System.Text.Json` from `CreateOutResCommand.cs`.
- Removed `Microsoft.Extensions.Logging` from `InvokeRecActionCommand.cs`.

This reduces unnecessary dependencies and improves readability.

src/ReC.Application/OutResults/Commands/CreateOutResCommand.cs

@@ -1,6 +1,5 @@
 using DigitalData.Core.Abstraction.Application.Repository;
 using MediatR;
-using System.Text.Json;
 
 namespace ReC.Application.OutResults.Commands;
 

src/ReC.Application/RecActions/Commands/InvokeRecActionCommand.cs

@@ -1,6 +1,5 @@
 using MediatR;
 using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging;
 using ReC.Application.Common;
 using ReC.Application.Common.Dto;
 using ReC.Application.Common.Exceptions;