Improve PodDisruptionBudget: set maxUnavailable to 25% instead of 50%

Author: collimarco

lib/cuber/templates/deployment.yml.erb

@@ -71,7 +71,7 @@ metadata:
     app.kubernetes.io/version: <%= @options[:release].to_s.to_json %>
     app.kubernetes.io/managed-by: cuber
 spec:
-  maxUnavailable: "50%"
+  maxUnavailable: "25%"
   selector:
     matchLabels:
       app: web-proc

lib/cuber/version.rb

@@ -1,3 +1,3 @@
 module Cuber
-  VERSION = '1.11.0'.freeze
+  VERSION = '1.12.0'.freeze
 end