Replace brakeman ignore with minimum warning level

Author: Ben Thorner

Rakefile

@@ -5,4 +5,4 @@ require_relative 'config/application'
 
 Rails.application.load_tasks
 
-task default: %i(spec lint brakeman:run)
+task default: %i(spec lint brakeman)

config/brakeman.ignore

@@ -1,9 +1,4 @@
-namespace :brakeman do
-  desc "Run Brakeman"
-  task :run, :output_files do |_, args|
-    require 'brakeman'
-
-    files = args[:output_files].split(' ') if args[:output_files]
-    Brakeman.run app_path: ".", output_files: files, print_report: true
-  end
+desc "Run Brakeman"
+task :brakeman do
+  sh 'brakeman -w2 -q'
 end