Issue with sept not being an abbreavation (canada-ca#857)

* Issue with sept not being an abbreavation

This lead to and error being created

* Forgot to update the test as well

Author: nsdeschenes

api/enums/period.py

@@ -10,7 +10,7 @@ class PeriodEnums(graphene.Enum):
     JUNE = "Jun"
     JULY = "Jul"
     AUGUST = "Aug"
-    SEPTEMBER = "Sept"
+    SEPTEMBER = "Sep"
     OCTOBER = "Oct"
     NOVEMBER = "Nov"
     DECEMBER = "Dec"

api/tests/test_period_enums.py

@@ -44,8 +44,8 @@ def test_august_enum():
 
 
 def test_september_enum():
-    assert PeriodEnums.SEPTEMBER == "Sept"
-    assert PeriodEnums.SEPTEMBER == PeriodEnums.get("Sept")
+    assert PeriodEnums.SEPTEMBER == "Sep"
+    assert PeriodEnums.SEPTEMBER == PeriodEnums.get("Sep")
 
 
 def test_october_enum():