Update create_file agent skill

[SmartManoj]

All-Hands-AI#2824

[SmartManoj]

@CodiumAI-Agent /review

[CodiumAI-Agent]

PR Reviewer Guide 🔍

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 PR contains tests

🔒 No security concerns identified

⚡ Key issues to review Functionality Change The behavior of create_file function has changed from creating and opening a file to just creating it. Ensure this change doesn't affect other parts of the system that rely on the file being open after creation. Error Handling The error handling in create_file has changed from raising an exception to printing an error message when the file already exists. This could affect how errors are handled upstream.