build(deps): bump boto3 from 1.16.50 to 1.16.51

Bumps [boto3](https://github.com/boto/boto3) from 1.16.50 to 1.16.51.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.16.50...1.16.51)

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

requirements.txt

@@ -6,7 +6,7 @@
 #
 argcomplete==1.12.2
     # via drode (setup.py)
-boto3==1.16.50
+boto3==1.16.51
     # via drode (setup.py)
 botocore==1.19.50
     # via