chore(deps-dev): bump the gha group across 1 directory with 4 updates

Bumps the gha group with 4 updates in the /packages/opentelemetry-instrumentation-mistralai directory: [flake8](https://github.com/pycqa/flake8), [pytest](https://github.com/pytest-dev/pytest), [mistralai](https://github.com/mistralai/client-python) and [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio).


Updates `flake8` from 7.0.0 to 7.1.1
- [Commits](PyCQA/flake8@7.0.0...7.1.1)

Updates `pytest` from 8.2.2 to 8.3.3
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.2.2...8.3.3)

Updates `mistralai` from 0.2.0 to 1.1.0
- [Release notes](https://github.com/mistralai/client-python/releases)
- [Changelog](https://github.com/mistralai/client-python/blob/main/RELEASES.md)
- [Commits](mistralai/client-python@0.2.0...v1.1.0)

Updates `pytest-asyncio` from 0.23.8 to 0.24.0
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.23.8...v0.24.0)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: gha
- dependency-name: pytest
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: gha
- dependency-name: mistralai
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: gha
- dependency-name: pytest-asyncio
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: gha
...

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