feat: streamline dependabot configuration for GitHub Actions, npm, and pip

[CDiezRodriguez]

WHAT

Dependabot configuration improvements:

• Restructured the GitHub Actions dependency management section for clarity and renamed the group to all-dependencies with a pattern to match all dependencies.

Expanded dependency management:

• Added a new section to manage frontend dependencies using the npm ecosystem for the /ichub-frontend directory, including separate groups for all, production, and development dependencies.
• Added a new section to manage backend dependencies using the pip ecosystem for the /ichub-backend directory, also with groups for all, production, and development dependencies.

WHY

This pull request updates the .github/dependabot.yml configuration to improve and expand automated dependency management for the project. The main changes include restructuring the existing GitHub Actions section and adding new configurations for both the frontend (npm) and backend (pip) dependencies, with more granular grouping for production and development dependencies.

[github-actions]

🧪 Test Summary

🎉 Status: SUCCESS

📊 Backend Tests

Passed	Failed	Total	Coverage
✅ 193	❌ 0	📋 193	📈 60.26%

Run Details

• Branch: 552/merge
• Commit: a7586080c0ebd3eec3f487d89d2f30845ff21774
• Trigger: pull_request