Merge pull request #61 from BiznetGIO/dependabot/pip/pyyaml-5.4

Upgrade: Bump pyyaml from 5.1.2 to 5.4

Author: efenfauzi

requirements.txt

@@ -9,4 +9,4 @@ tabulate==0.8.3
 xmltodict==0.12.0
 requests==2.22.0
 requests-aws4auth==0.9
-PyYAML==5.1.2
+PyYAML==5.4