tweak intializers to remove gitleaks triggers

Author: ryanmerolle

.devcontainer/initializers/users.yml

@@ -1,15 +1,12 @@
 technical_user:
-  api_token: 0123456789technicaluser789abcdef01234567 # must be looooong!
+  api_token: "" # a token is generated automatically unless the value is explicity set to empty
 reader:
-  password: reader
+  api_token: "" # a token is generated automatically unless the value is explicity set to empty
 writer:
-  password: writer
   api_token: "" # a token is generated automatically unless the value is explicity set to empty
 jdoe:
   first_name: John
   last_name: Doe
-  api_token: 0123456789jdoe789abcdef01234567jdoe
   is_active: True
   is_superuser: False
   is_staff: False
-  email: john.doe@example.com