Fix false positive warnings for PostgreSQL User (#17)

This stops a the false positive warnings that the `no_password_changes`
doesn't have the `no_log` set.

plugins/modules/database/postgresql/postgresql_user.py

@@ -806,7 +806,7 @@ def main():
         fail_on_user=dict(type='bool', default='yes', aliases=['fail_on_role']),
         role_attr_flags=dict(type='str', default=''),
         encrypted=dict(type='bool', default='yes'),
-        no_password_changes=dict(type='bool', default='no'),
+        no_password_changes=dict(type='bool', default='no', no_log=False),
         expires=dict(type='str', default=None),
         conn_limit=dict(type='int', default=None),
         session_role=dict(type='str'),