Add ability to configure a worker_queue

This works by overriding the `perform_async` method. I was surprised this works, but it does.

Author: jclusso

lib/fabric.rb

@@ -146,6 +146,7 @@ class Config
     attr_accessor :worker_callback
     attr_accessor :persist_models
     attr_accessor :currencies
+    attr_accessor :worker_queue
 
     def initialize
       @store_events = true
@@ -154,6 +155,7 @@ def initialize
       @worker_callback = Proc.new {}
       @persist_models = :all
       @currencies = %w(usd)
+      @worker_queue = 'fabric'
     end
 
     def persist?(document)

lib/fabric/app/workers/webhook_worker.rb

@@ -2,7 +2,9 @@ module Fabric
   class WebhookWorker
     include Sidekiq::Worker
 
-    sidekiq_options queue: 'fabric'
+    def self.perform_async(...)
+      set(queue: Fabric.config.worker_queue).perform_async(...)
+    end
 
     def perform(event, webhook_class)
       log_data = { event: event['id'], webhook_class: webhook_class }

lib/fabric/app/workers/worker.rb

@@ -3,7 +3,11 @@ class Worker
     include Fabric
     include Sidekiq::Worker
 
-    sidekiq_options queue: 'fabric', retry: false
+    sidekiq_options retry: false
+
+    def self.perform_async(...)
+      set(queue: Fabric.config.worker_queue).perform_async(...)
+    end
 
     def perform(operation, *args)
       @log_data = { class: self.class.name, operation: operation, args: args }