Bump pyaml from 15.8.2 to 20.3.1

dependabot-preview[bot] · web-flow · commit 21847dc0a7b1 · 2020-03-29T13:44:41.000Z
Bumps [pyaml](https://github.com/mk-fg/pretty-yaml) from 15.8.2 to 20.3.1. - [Release notes](https://github.com/mk-fg/pretty-yaml/releases) - [Commits](https://github.com/mk-fg/pretty-yaml/commits) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
diff --git a/Pipfile b/Pipfile
@@ -18,7 +18,7 @@ botocore = "==1.5.62"
 click = "==6.6"
 docutils = "*"
 jmespath = "==0.9.0"
-pyaml = "==15.8.2"
+pyaml = "==20.3.1"
 python-dateutil = "==2.5.3"
 PyYAML = "==5.1"
 
