update quota script

Minor tweak to update quota script. Makes it easier to run anywhere

tools/dice_maiden_quota.rb

@@ -3,6 +3,7 @@
 
 require 'dotenv'
 
-Dotenv.load('../.env')
+cwd = File.expand_path(File.join(File.dirname(__FILE__), %w[../]))
+Dotenv.load("#{cwd}/.env")
 token = ENV['TOKEN']
 exec("curl -s -H \"Authorization: Bot #{token}\" https://discordapp.com/api/v6/gateway/bot | jq")