Bump boto3 from 1.17.6 to 1.17.7 in /tests

Bumps [boto3](https://github.com/boto/boto3) from 1.17.6 to 1.17.7.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.17.6...1.17.7)

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

Author: dependabot[bot]

tests/requirements.txt

@@ -1,3 +1,3 @@
 requests==2.25.1
-boto3==1.17.6
+boto3==1.17.7
 pytest==6.2.2