Fix up new Django 3.0 deprecations

Mostly text based: force/smart_text, ugettext_*

awx/ui/fields.py

@@ -7,7 +7,7 @@ import binascii
 import re
 
 # Django
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 # AWX
 from awx.conf import fields