prepare v0.1.3 release

Author: ydkn

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.1.3] - 2019-07-30
 ### Fixed
 - error output if updating the advisory-db failed
 

lib/sensu-plugins-ruby/version.rb

@@ -4,7 +4,7 @@ module SensuPluginsRuby
   module Version
     MAJOR = 0
     MINOR = 1
-    PATCH = 0
+    PATCH = 3
 
     STRING = [MAJOR, MINOR, PATCH].compact.join('.')
   end