Update plugin_parsing.rb

rubocop says no

Author: towo

lib/puppet_x/elastic/plugin_parsing.rb

@@ -17,7 +17,7 @@ def self.plugin_version(raw_name)
     end
 
     # Attempt to guess at the plugin's final directory name
-    def self.plugin_split(original_string, position, soft_fail = true) # rubocop:disable Style/OptionalBooleanParameter
+    def self.plugin_split(original_string, position, soft_fail = true)
       # Try both colon (maven) and slash-delimited (github/elastic.co) names
       %w[/ :].each do |delimiter|
         parts = original_string.split(delimiter)