chore(deps): bump boto3 from 1.34.81 to 1.34.85 in /backend/requirements

Bumps [boto3](https://github.com/boto/boto3) from 1.34.81 to 1.34.85.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.34.81...1.34.85)

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

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

backend/requirements/base.txt

@@ -22,4 +22,4 @@ djangorestframework-api-key==3.0.0
 django-napse==1.13.3 # https://github.com/napse-invest/django-napse
 
 # # External tools
-boto3==1.34.81 # https://boto3.amazonaws.com/v1/documentation/api/latest/guide/quickstart.html
+boto3==1.34.85 # https://boto3.amazonaws.com/v1/documentation/api/latest/guide/quickstart.html