📝 Fix Python version classifiers (#247)

## Description

This PR fixes the version classifiers in `pyproject.toml`.

## Checklist:

- [x] The pull request only contains commits that are focused and
relevant to this change.
- [x] ~I have added appropriate tests that cover the new/changed
functionality.~
- [x] ~I have updated the documentation to reflect these changes.~
- [x] The changes follow the project's style guidelines and introduce no
new warnings.
- [x] The changes are fully tested and pass the CI checks.
- [x] I have reviewed my own code changes.


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## Summary by CodeRabbit

## Release Notes

* **Chores**
  * Added support for Python 3.14 to project metadata.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: denialhaag

pyproject.toml

@@ -28,6 +28,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 dynamic = ["version"]