Merge pull request #90 from rveachkc/dependabot/pip/pyyaml-5.4

Bump pyyaml from 5.3.1 to 5.4

Author: rveachkc

dev-requirements.txt

@@ -30,7 +30,7 @@ Pygments==2.6.1
 pylint==2.5.3
 pyparsing==2.4.0
 pytest==5.0.1
-PyYAML==5.3.1
+PyYAML==5.4
 readme-renderer==26.0
 requests==2.23.0
 requests-toolbelt==0.9.1