invoke for create task should use option/flagged arguments #511

Describe the bug
Positional arguments do not work with invoke for create task.

To Reproduce

• create DB and superuser: invoke create --username admin --password admin --email a@a.com
• run app
• login with admin, admin
• login fails

Expected Behavior
login should succeed.

Context (please complete the following information):

• all contexts
• GeoHealthCheck Version latest

Additional context
According to invoke doc should be:

invoke create --username admin --password admin --email a@a.com

This worked.