Update faker from 2.0.1 to 2.0.2 (#702)

Author: pyup-bot

requirements-development.txt

@@ -2,7 +2,7 @@
 django-debug-toolbar==1.11
 django-filter==2.2.0
 django-polymorphic==2.1.2
-Faker==2.0.1
+Faker==2.0.2
 factory-boy==2.12.0
 flake8==3.7.7
 flake8-isort==2.7.0