Bump version to 0.2.0

Author: kenhys

fluent-plugin-fluent-package-update-notifier.gemspec

@@ -3,7 +3,7 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
 Gem::Specification.new do |spec|
   spec.name    = "fluent-plugin-fluent-package-update-notifier"
-  spec.version = "0.1.0"
+  spec.version = "0.2.0"
   spec.authors = ["Kentaro Hayashi"]
   spec.email   = ["hayashi@clear-code.com"]