[pre-commit-ci]

updates:

• github.com/PyCQA/isort: 10.0.0b1 → 10.0.0b2
• github.com/PyCQA/flake8: 7.4.1 → 7.5.0

Summary by Sourcery

Refresh development tooling and supported test environments.

Enhancements:

• Update the isort and flake8 pre-commit hooks to their latest specified releases.
• Configure stub type-checking with GNU C17 compiler flags.

Build:

• Drop Python 3.9 from the tox workflow test matrix.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

The PR refreshes the pre-commit tool pins for isort and flake8 to newer upstream releases while preserving the existing hook configuration.

File-Level Changes

Change	Details	Files
Update the pinned pre-commit formatting and linting tool revisions.	Advance isort from 10.0.0b1 to 10.0.0b2. Advance flake8 from 7.4.1 to 7.5.0. Leave existing hook IDs, names, arguments, and dependency configuration unchanged.	.pre-commit-config.yaml

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

Sourcery assessment

Approved.

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