Bump boto3 from 1.16.43 to 1.16.47

Bumps [boto3](https://github.com/boto/boto3) from 1.16.43 to 1.16.47.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.16.43...1.16.47)

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

Author: dependabot-preview[bot]

docs/requirements.txt

@@ -18,7 +18,7 @@ attrs==20.3.0
 bandit==1.7.0
 beautifulsoup4==4.9.3
 black==20.8b1
-boto3==1.16.43
+boto3==1.16.47
 botocore==1.19.43
 certifi==2020.12.5
 chardet==4.0.0