chore(deps-dev): bump mkdocstrings-python from 1.14.6 to 1.15.0 (aws-powertools#6079)

Bumps [mkdocstrings-python](https://github.com/mkdocstrings/python) from 1.14.6 to 1.15.0.
- [Release notes](https://github.com/mkdocstrings/python/releases)
- [Changelog](https://github.com/mkdocstrings/python/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/python@1.14.6...1.15.0)

---
updated-dependencies:
- dependency-name: mkdocstrings-python
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ana Falcão <[email protected]>

Author: 2 people