Bump boto3 from 1.17.88 to 1.17.94 (#294)

Bumps [boto3](https://github.com/boto/boto3) from 1.17.88 to 1.17.94.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.17.88...1.17.94)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-server.txt

@@ -2,4 +2,4 @@ fastapi==0.65.2
 maggma==0.29.0
 uvicorn==0.14.0
 gunicorn[gevent]==20.1.0
-boto3==1.17.88
+boto3==1.17.94