chore(deps-dev): bump the dev-dependencies group across 1 directory with 3 updates

Bumps the dev-dependencies group with 3 updates in the / directory: [coverage](https://github.com/coveragepy/coveragepy), [mypy](https://github.com/python/mypy) and [ruff](https://github.com/astral-sh/ruff).


Updates `coverage` from 7.14.3 to 7.15.3
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.14.3...7.15.3)

Updates `mypy` from 2.1.0 to 2.3.0
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v2.1.0...v2.3.0)

Updates `ruff` from 0.15.19 to 0.16.1
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.19...0.16.1)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.15.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: mypy
  dependency-version: 2.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: ruff
  dependency-version: 0.15.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

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Author: dependabot[bot]