Support Python 3.13

[nobu-g]

No description provided.

[Copilot]

Pull Request Overview

This PR aims to enable support for Python 3.13 by updating version constraints, workflow matrices, and adding explicit return type annotations to many functions. Key changes include:

• Adjusting python version constraints and update linting configurations in pyproject.toml and various GitHub workflow files.
• Adding return type annotations (mostly "-> None") in many scripts and modules.
• Minor dependency and configuration updates (e.g. adding “rich” in pre-commit config, bumping max-parallel settings).

Reviewed Changes

Copilot reviewed 47 out of 47 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/kwja/cli/cli.py	Added return type annotations for load functions.
scripts/*.py (various)	Added explicit return types for main and helper functions.
pyproject.toml	Updated Python version constraint and linting rules for Python 3.13.
CHANGELOG.md	Documented support for Python 3.13.
.pre-commit-config.yaml & workflows	Updated dependency list and workflow matrices for 3.13 support.

Comments suppressed due to low confidence (1)

pyproject.toml:101

• Consider reviewing the 'target-version' setting to better reflect support for Python 3.13, ensuring consistency with the new version constraints.

target-version = "py39"  # The minimum Python version to target

[Copilot]

Ensure that adding the assertion for 'morpheme.canon' is appropriate; if a None value is possible in valid scenarios, consider handling this case gracefully instead of triggering an exception.

Suggested change

	assert morpheme.canon is not None
	if len(canons) > 1 or sampled_canon2freq.get(morpheme.canon, 0) >= args.max_samples:
	if morpheme.canon is None:
	excluded_nums["none_canon"] = excluded_nums.get("none_canon", 0) + 1
	continue