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

Bumps [aws-lambda-powertools](https://github.com/aws-powertools/powertools-lambda-python) from 2.28.0 to 2.28.1.
- [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@v2.28.0...v2.28.1)

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

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

lambda/src/requirements.txt

@@ -1,4 +1,4 @@
-aws-lambda-powertools==2.28.0
+aws-lambda-powertools==2.28.1
 
 aws-assume-role-lib==2.10.0