chore(deps): update pip packages: Bump boto3

Bumps [boto3](https://github.com/boto/boto3) from 1.35.63 to 1.35.68.
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.35.63...1.35.68)

---
updated-dependencies:
- dependency-name: boto3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

samples/document-explorer/client_app/requirements.txt

@@ -1,4 +1,4 @@
-boto3==1.35.63
+boto3==1.35.68
 cryptography==43.0.3
 pandas==2.2.3
 PyJWT==2.10.0