Bump boto3 from 1.19.0 to 1.19.1 in /tests (#137)

Bumps [boto3](https://github.com/boto/boto3) from 1.19.0 to 1.19.1.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.19.0...1.19.1)

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

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

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

Author: dependabot[bot]

tests/requirements.txt

@@ -1,3 +1,3 @@
 requests==2.26.0
-boto3==1.19.0
+boto3==1.19.1
 pytest==6.2.5