Validating Log File Path for cli function

[rajithkrishnegowda]

Fixing 656290 Filesystem path, filename, or URI manipulation

Changes:

• Path Normalization: Added os.path.normpath(log_file) to normalize the log file path.
• Regular Expression Validation: Updated the regular expression to ensure the log file is within the logs directory and contains only allowed characters.
• Additional Security Checks:
  1. Ensured the log file path does not contain .. or start with /.
  2. Used pathlib to handle paths more securely.
  3. Verified that the resolved log file path is within the allowed directory.