chore(deps-dev): bump boto3-stubs from 1.40.2 to 1.40.3 (aws-powertools#7111)

Bumps [boto3-stubs](https://github.com/youtype/mypy_boto3_builder) from 1.40.2 to 1.40.3.
- [Release notes](https://github.com/youtype/mypy_boto3_builder/releases)
- [Commits](https://github.com/youtype/mypy_boto3_builder/commits)

---
updated-dependencies:
- dependency-name: boto3-stubs
  dependency-version: 1.40.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]