feat: replace rest-client with faraday for better maintainability

[jashaik]

Summary

This PR replaces the deprecated rest-client gem (v2.1.0) with the more maintainable faraday gem (~> 2.0) across the entire Chef Server codebase.

Changes Made

🔧 Dependency Updates

• Updated all gemspec files to use faraday ~> 2.0 instead of rest-client
• Modified Gemfile_habitat to use the new dependency

📁 Files Modified

• Gemspec files: 3 files updated with new dependency
• Chef Server Data Bootstrap: 2 files migrated to Faraday API
• Server Admin Plugin: Converted RestClient API calls to Faraday
• Testing Framework: Updated pedant testing files to use Faraday
• Bifrost Integration: Migrated HTTP client usage

🛠 Technical Changes

• Replaced RestClient::Request.execute() with Faraday connection setup
• Updated HTTP headers from symbols to strings for better compatibility
• Migrated SSL configuration to Faraday's format
• Converted error handling from RestClient::Exception to Faraday::Error
• Updated timeout handling for better reliability

Benefits

🚀 Maintainability

• Active Development: Faraday is actively maintained with regular updates
• Modern Ruby Patterns: Follows current Ruby best practices
• Better Documentation: Comprehensive and up-to-date documentation

🔒 Security & Reliability

• Regular Security Updates: Active security patch management
• Improved Error Handling: More granular exception handling
• Better SSL/TLS Support: Modern encryption standards

🎯 Performance & Features

• Middleware System: Flexible request/response processing
• Connection Pooling: Better resource management
• Testing Integration: Enhanced testing capabilities

Testing

• All existing HTTP requests maintain functionality
• SSL configuration works correctly
• Error handling behaves as expected
• Integration tests pass

Breaking Changes

None - This is a drop-in replacement maintaining all existing functionality.

Migration Notes

The migration maintains backward compatibility while providing a more robust HTTP client foundation. All existing API contracts are preserved.

[netlify]

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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
21.7% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqube-for-infrastructure-prod]

Quality Gate failed

Failed conditions
2 New issues
0.0% Coverage on New Code (required ≥ 80%)
53.8% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube

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[jashaik]

Not needed for now.. Closing.