chore(deps): bump pyyaml from 3.12 to 5.4 in /components/aws/sagemaker (#6549)

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 3.12 to 5.4.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](https://github.com/yaml/pyyaml/compare/3.12...5.4)

---
updated-dependencies:
- dependency-name: pyyaml
  dependency-type: direct:production
...

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components/aws/sagemaker/requirements.txt

@@ -2,5 +2,5 @@
 boto3==1.14.12
 sagemaker==2.1.0
 pathlib2==2.3.5
-pyyaml==3.12
+pyyaml==5.4
 mypy-extensions==0.4.3