feat(python): updated to 6.0.15

Author: FGRibreau

platform/python/setup.py

@@ -4,7 +4,7 @@
 
 setup(
   name='mailchecker',
-  version = "6.0.14",
+  version = "6.0.15",
   py_modules=['MailChecker'],
   url='https://github.com/FGRibreau/mailchecker',
   license='MIT',