Merge pull request #3 from shidenko97/dependabot/pip/pyyaml-5.4

Bump pyyaml from 5.3.1 to 5.4

Author: shidenko97

requirements-dev.txt

@@ -16,7 +16,7 @@ pathspec==0.8.1
 pre-commit==2.9.3
 pycodestyle==2.6.0
 pyflakes==2.2.0
-PyYAML==5.3.1
+PyYAML==5.4
 regex==2020.11.13
 requests==2.25.1
 six==1.15.0