Fix Typo in Package Metadata (#298)

@auvipy There _are_ MX records for that domain but I still assume this is a typo 😄

Author: bradshjg

django_celery_beat/__init__.py

@@ -12,7 +12,7 @@
 
 __version__ = '1.5.0'
 __author__ = 'Asif Saif Uddin, Ask Solem'
-__contact__ = 'auvipy@gmai.com, [email protected]'
+__contact__ = 'auvipy@gmail.com, [email protected]'
 __homepage__ = 'https://github.com/celery/django-celery-beat'
 __docformat__ = 'restructuredtext'