Update idna to 3.9

[pyup-bot]

This PR updates idna from 3.4 to 3.9.

Changelog

3.9

++++++++++++++++

- Update to Unicode 16.0.0
- Deprecate setup.cfg in favour of pyproject.toml
- Use ruff for code formatting

Thanks to Waket Zheng for contributions to this release.

3.8

++++++++++++++++

- Fix regression where IDNAError exception was not being produced for
certain inputs.
- Add support for Python 3.13, drop support for Python 3.5 as it is no
longer testable.
- Documentation improvements
- Updates to package testing using Github actions

Thanks to Hugo van Kemenade for contributions to this release.

3.7

++++++++++++++++

- Fix issue where specially crafted inputs to encode() could
take exceptionally long amount of time to process. [CVE-2024-3651]

Thanks to Guido Vranken for reporting the issue.

3.6

++++++++++++++++

- Fix regression to include tests in source distribution.

3.5

++++++++++++++++

- Update to Unicode 15.1.0
- String codec name is now "idna2008" as overriding the system codec
"idna" was not working.
- Fix typing error for codec encoding
- "setup.cfg" has been added for this release due to some downstream
lack of adherence to PEP 517. Should be removed in a future release
so please prepare accordingly.
- Removed reliance on a symlink for the "idna-data" tool to comport
with PEP 517 and the Python Packaging User Guide for sdist archives.
- Added security reporting protocol for project

Thanks Jon Ribbens, Diogo Teles Sant'Anna, Wu Tingfeng for contributions
to this release.

Links

• PyPI: https://pypi.org/project/idna
• Changelog: https://data.safetycli.com/changelogs/idna/