chore(deps): update dependency tiktoken to v0.13.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
tiktoken (changelog)	==0.7.0 → ==0.13.0

---

Release Notes

openai/tiktoken (tiktoken)

v0.13.0

Compare Source

• Update fancy-regex for significantly increased performance
• Branch byte pair encoding to fix performance on unusual input
• Fix AttributeError caused by incomplete redaction of experimental code
• Update version of pyo3
• Update version of optional dependency blobfile

v0.12.0

Compare Source

• Build wheels for Python 3.14
• Build musllinux aarch64 wheels
• Support for free-threaded Python
• Update version of pyo3 and rustc-hash
• Avoid use of blobfile for reading local files
• Recognise gpt-5 model identifier
• Minor performance improvement for file reading

v0.11.0

• Support for GPT-5
• Update version of pyo3
• Use new Rust edition
• Fix special token handling in encode_to_numpy
• Better error handling
• Improvements to private APIs

v0.10.0

• Support for newer models
• Improvements to private APIs

v0.9.0

Compare Source

• Support for o1 and o3 models
• Better error messages when loading invalid vocabulary files
• Support for encoding to numpy arrays
• Delayed imports when not strictly necessary

v0.8.0

Compare Source

• Support for o1- and chatgpt-4o- models
• Build wheels for Python 3.13
• Add possessive quantifiers to limit backtracking in regular expressions, thanks to @​l0rinc!
• Provide a better error message and type for invalid token decode
• Permit tuples in type hints
• Better error message for passing invalid input to get_encoding
• Better error messages during plugin loading
• Add a __version__ attribute
• Update versions of pyo3, regex, fancy-regex
• Drop support for Python 3.8

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.