Bump botocore from 1.20.47 to 1.20.49

Bumps [botocore](https://github.com/boto/botocore) from 1.20.47 to 1.20.49.
- [Release notes](https://github.com/boto/botocore/releases)
- [Changelog](https://github.com/boto/botocore/blob/develop/CHANGELOG.rst)
- [Commits](boto/botocore@1.20.47...1.20.49)

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

requirements.txt

@@ -1,7 +1,7 @@
 attrs==20.3.0
 bcrypt==3.2.0
 boto3==1.17.47
-botocore==1.20.47
+botocore==1.20.49
 canonicaljson-rs==0.3.0
 certifi==2020.12.5
 cffi==1.14.5