Update tiktoken Package Version to 0.6.0 for Python 3.11 Support [pip OPTION]

[FranciscoYlderlan]

Currently, the tiktoken package is on version 0.4.0, which does not support Python 3.11 and newer versions. The 0.6.0 version of the package has updates to support Python 3.11 and above. I kindly request the owner to update the tiktoken package version to 0.6.0 to ensure compatibility with the latest Python versions. This will provide a better user experience for those who wish to use the package with the latest Python versions. I appreciate your consideration of this request.