Add new Radu lesson and update Docker configuration for deployment

[Innovatedev22]

Summary
This pull request introduces the following changes:

New Lesson: Adds a new "Radu" lesson to the WebGoat application.
Docker Configuration Updates: Updates the Docker configuration to improve deployment processes.
Details
Additions: 1,358 lines
Deletions: 1,821 lines
Files Changed: 53
Commits
This pull request contains 1 commit:

Update codebase with the new lesson and Docker adjustments.
Testing
Please review the changes and verify the following:

The new lesson is correctly integrated and functional.
Docker deployment processes work seamlessly with the updated configuration.
Additional Notes
The PR is ready for review and is mergeable. Feedback is welcome to ensure functionality and quality.

[Innovatedev22]

Review from copilot

The pull request introduces several changes, including:

Workflow Additions:

A new workflow file .github/workflows/deploy-to-gcp.yml was added to automate deployment to Google Cloud Platform (GCP). It includes steps for code checkout, GCP authentication, Cloud SDK setup, and App Engine deployment.
A new workflow file .github/workflows/java-ci.yml was added for Java continuous integration. It includes steps for code checkout, setting up JDK, caching Gradle dependencies, building with Gradle, and running tests.
New Files Added:

Various .gradle files were added, such as checksum files, dependencies accessors, and build-related data. These files seem to be related to Gradle build processes and configurations.
Notes:
The results may be incomplete due to API limitations. You can view all the changes here.
Let me know if you'd like further details on any specific file or change.