Incorrect Path for Temporary File Generation in `check_file_permissions` Method

[Sohambutala]

The check_file_permissions method in the codebase is used to verify file permissions by generating a temporary file in the target path. However, it has been observed that this method is incorrectly creating the temporary file in the parent directory (one level up) of the target path instead of the intended location.

File Directory Root : /Users/soham/Desktop/EchoWorkSpace/echoflow/notebooks/combined_files Test file generated at : /Users/soham/Desktop/EchoWorkSpace/echoflow/notebooks/.f0605b17-da68-45e8-95b4-f40281cdca22

[lsetiawan]

Thanks for catching this bug @Sohambutala!