This pull request includes several updates to GitHub workflows, code improvements, and configuration changes. The most important changes involve adding new workflows for advanced CodeQL analysis and .NET CI/CD, updating dependencies, and improving security and documentation.

GitHub Workflows:

• Advanced CodeQL Analysis: Added a new workflow for advanced CodeQL analysis to scan the codebase for vulnerabilities and errors. (.github/workflows/codeql.yml)
• .NET CI/CD Pipeline: Introduced a comprehensive CI/CD pipeline for .NET applications, including build, test, Docker build and push, and deployment to different environments (dev, test, prod). (.github/workflows/deploy.yml)
• Basic .NET Workflow: Added a basic workflow for building and testing .NET projects. (.github/workflows/dotnet.yml)

Code Improvements:

• Message Analysis Optimization: Simplified the message analysis logic by replacing a loop with a LINQ query to calculate the average word count. (src/Application/src/RazorPagesTestSample/Pages/Index.cshtml.cs)
• Security Enhancement: Added a check to ensure that files extracted from a ZIP archive do not escape the target directory. (src/Application/src/RazorPagesTestSample/Pages/Index.cshtml.cs)

Configuration and Dependencies:

• Dockerfile for .NET Application: Added a Dockerfile to build and run the .NET application using .NET 8.0. (src/Application/src/RazorPagesTestSample/dockerfile)
• Dependency Updates: Updated Newtonsoft.Json to version 13.0.3 in the test project. (src/Application/tests/RazorPagesTestSample.Tests/RazorPagesTestSample.Tests.csproj)

Documentation and Security:

• Security Policy Update: Revised the SECURITY.md file to provide updated instructions for reporting security issues. (SECURITY.md)
• Code Ownership: Added a CODEOWNERS file to designate code owners for specific directories. (CODEOWNERS)