chore(deps): bump aws-lambda-powertools in /src/python (#1343)

Bumps [aws-lambda-powertools](https://github.com/aws-powertools/powertools-lambda-python) from 3.26.0 to 3.28.0.
- [Release notes](https://github.com/aws-powertools/powertools-lambda-python/releases)
- [Changelog](https://github.com/aws-powertools/powertools-lambda-python/blob/develop/CHANGELOG.md)
- [Commits](aws-powertools/powertools-lambda-python@v3.26.0...v3.28.0)

---
updated-dependencies:
- dependency-name: aws-lambda-powertools
  dependency-version: 3.28.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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