chore(deps): bump boto3

Bumps the minor-and-patch group in /lambdas/po/site_extractor with 1 update: [boto3](https://github.com/boto/boto3).


Updates `boto3` from 1.43.56 to 1.43.57
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](https://github.com/boto/boto3/compare/1.43.56...1.43.57)

---
updated-dependencies:
- dependency-name: boto3
  dependency-version: 1.43.57
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minor-and-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

lambdas/po/site_extractor/requirements.txt

@@ -1 +1 @@
-boto3==1.43.56
+boto3==1.43.57