Bump the dev-dependencies group with 6 updates

Bumps the dev-dependencies group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [pytest](https://github.com/pytest-dev/pytest) | `8.3.5` | `8.4.1` |
| [pytest-cov](https://github.com/pytest-dev/pytest-cov) | `6.1.1` | `6.2.1` |
| [hypothesis](https://github.com/HypothesisWorks/hypothesis) | `6.132.0` | `6.135.20` |
| [coverage](https://github.com/nedbat/coveragepy) | `7.8.2` | `7.9.1` |
| [mypy](https://github.com/python/mypy) | `1.16.0` | `1.16.1` |
| [ruff](https://github.com/astral-sh/ruff) | `0.11.12` | `0.12.1` |


Updates `pytest` from 8.3.5 to 8.4.1
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.5...8.4.1)

Updates `pytest-cov` from 6.1.1 to 6.2.1
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.1.1...v6.2.1)

Updates `hypothesis` from 6.132.0 to 6.135.20
- [Release notes](https://github.com/HypothesisWorks/hypothesis/releases)
- [Commits](HypothesisWorks/hypothesis@hypothesis-python-6.132.0...hypothesis-python-6.135.20)

Updates `coverage` from 7.8.2 to 7.9.1
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.8.2...7.9.1)

Updates `mypy` from 1.16.0 to 1.16.1
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.16.0...v1.16.1)

Updates `ruff` from 0.11.12 to 0.12.1
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.11.12...0.12.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 8.4.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: pytest-cov
  dependency-version: 6.2.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: hypothesis
  dependency-version: 6.135.20
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: coverage
  dependency-version: 7.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: mypy
  dependency-version: 1.16.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: ruff
  dependency-version: 0.12.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]