Centralised the initiation of MUTEX

spec/beef/core/main/autorun_engine/autorun_engine_spec.rb

@@ -10,8 +10,6 @@ require_relative '../../../../spec_helper'
 require_relative '../../../../support/constants'
 require_relative '../../../../support/beef_test'
 
-MUTEX = Mutex.new
-
 RSpec.describe 'AutoRunEngine Test', run_on_browserstack: true do
   before(:all) do
     @config = BeEF::Core::Configuration.instance

spec/beef/core/main/handlers/browser_details_handler_spec.rb

@@ -10,8 +10,6 @@ require_relative '../../../../spec_helper'
 require_relative '../../../../support/constants'
 require_relative '../../../../support/beef_test'
 
-MUTEX = Mutex.new
-
 RSpec.describe 'Browser Details Handler', run_on_browserstack: true do
   before(:all) do
 

spec/beef/extensions/websocket_hooked_browser_spec.rb

@@ -11,8 +11,6 @@ require_relative '../../support/beef_test'
 require 'core/main/network_stack/websocket/websocket'
 require 'websocket-client-simple'
 
-MUTEX = Mutex.new
-
 RSpec.describe 'Browser hooking with Websockets', run_on_browserstack: true do
   before(:all) do
     @config = BeEF::Core::Configuration.instance

spec/beef/modules/debug/test_beef_debugs_spec.rb

@@ -10,8 +10,6 @@ require_relative '../../../spec_helper'
 require_relative '../../../support/constants'
 require_relative '../../../support/beef_test'
 
-MUTEX = Mutex.new
-
 RSpec.describe 'BeEF Debug Command Modules:', run_on_browserstack: true do
   before(:all) do
     # Grab config and set creds in variables for ease of access

spec/spec_helper.rb

@@ -25,6 +25,8 @@ require 'selenium-webdriver'
 require 'browserstack/local'
 require 'byebug'
 
+MUTEX ||= Mutex.new
+
 # Require supports
 Dir['spec/support/*.rb'].each do |f|
   require f