Fix undeclared dependency on typing-extensions

[musicinmybrain]

💬 Description

Instead of importing Annotated from typing_extensions, import it from typing; this requires Python 3.9 or later.

This fixes an undeclared runtime dependency on typing-extensions.

Even Python 3.9 is already at end of life, let alone older releases, and you already require Python 3.10+,

NiaAML/pyproject.toml

Line 23 in 6e6798f

python = ">=3.10,<=3.14"

so it should be fine to make this change unconditionally.

❗ Issue Links

Fixes #100

🧪 How Has This Been Tested?

$ python3.13 --version
Python 3.13.13
$ python3.13 -m venv _e
$ . _e/bin/activate
(_e) $ pip install poetry
(_e) $ poetry install
(_e) $ pytest -v
[…]
======================================================================== 71 passed, 86 warnings in 78.52s (0:01:18) =========================================================================

✅ Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas N/A, trivial
• I have made corresponding changes to the documentation N/A, trivial
• I have added tests that prove my fix is effective or that my feature works N/A, no obvious way to test for implicit dependencies
• New and existing unit tests pass locally with my changes

[firefly-cpp]

Thanks! I will release a new version of this package.