Fix tests for admins and users - email key was missing

test/fixtures/admins.yml

@@ -4,8 +4,8 @@
 # model remove the '{}' from the fixture names and add the columns immediately
 # below each fixture, per the syntax in the comments below
 #
-one: {}
-# column: value
+one:
+  email: test1@example.org
 #
-two: {}
-# column: value
+two:
+  email: test2@example.org

test/fixtures/users.yml

@@ -4,8 +4,9 @@
 # model remove the '{}' from the fixture names and add the columns immediately
 # below each fixture, per the syntax in the comments below
 #
-one: {}
+one:
+  email: test1@example.org
 # column: value
 #
-two: {}
-# column: value
+two:
+  email: test2@example.org