Update patcher.py

Fixed running multiple instances issue

undetected_chromedriver/patcher.py

@@ -2,6 +2,7 @@
 # this module is part of undetected_chromedriver
 
 from distutils.version import LooseVersion
+import secrets
 import io
 import logging
 import os
@@ -69,7 +70,7 @@ class Patcher(object):
         """
         self.force = force
         self._custom_exe_path = False
-        prefix = "undetected"
+        prefix = secrets.token_hex(8) #fixes running multiple instanes at once
         self.user_multi_procs = user_multi_procs
 
         if not os.path.exists(self.data_path):