modify version bounds for dependencies

[sebastian-carpenter]

ZD#22033:
Removed maximum version bound for dependencies

Also noticed that the minimum cffi version is not consistent so I synchronized it to 1.17. This is the minimum for python 3.13.

• This may cause issues for Python 3.10 which has a minimum of 1.15

[Copilot]

Pull request overview

Updates dependency constraints across packaging metadata and requirements files to remove upper version bounds, and standardizes the minimum cffi version to 1.17 (notably needed for Python 3.13 support).

Changes:

• Removed maximum version caps from runtime/test/docs requirements.
• Raised and synchronized the minimum cffi version to >=1.17 across setup.py, pyproject.toml, and requirements/prod.txt.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
setup.py	Updates setup_requires / install_requires to require cffi>=1.17.
pyproject.toml	Updates project dependency on cffi to >=1.17.
requirements/prod.txt	Updates runtime cffi requirement to >=1.17 without an upper bound.
requirements/test.txt	Removes upper bounds for tox, pytest, and types-cffi.
requirements/docs.txt	Removes upper bounds for Sphinx and the RTD theme dependency.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[mjdemilliano]

"This may cause issues for Python 3.10 which has a minimum of 1.15" => it's the other way around: according to the cffi release notes, version 1.15 adds Python 3.10 support. In version 2.0.0 support is dropped for Python 3.8.

This change works for me, thanks.