fix: use conn_with_password_user instead of log_in_user in test

- Replace log_in_user with conn_with_password_user for consistency
- Fixes compilation error in membership fee integration test

test/mv_web/member_live/membership_fee_integration_test.exs

@@ -22,7 +22,7 @@ defmodule MvWeb.MemberLive.MembershipFeeIntegrationTest do
       })
       |> Ash.create()
 
-    conn = log_in_user(build_conn(), user)
+    conn = conn_with_password_user(build_conn(), user)
     %{conn: conn, user: user}
   end