Upgrade django-simple-history and edx-enterprise together.

requirements/edx/base.txt

@@ -28,7 +28,7 @@ django-pipeline-forgiving==1.0.0
 django-pyfs==1.0.7
 django-sekizai>=0.10
 django-ses==0.7.1
-django-simple-history==1.6.3
+django-simple-history==1.9.0
 django-statici18n==1.4.0
 django-storages==1.4.1
 django-method-override==0.1.0
@@ -47,7 +47,7 @@ edx-lint==0.4.3
 astroid==1.3.8
 edx-django-oauth2-provider==1.2.5
 edx-django-sites-extensions==2.3.0
-edx-enterprise==0.52.3
+edx-enterprise==0.52.4
 edx-oauth2-provider==1.2.2
 edx-opaque-keys==0.4.0
 edx-organizations==0.4.7