Fix credo

Author: RichDom2185

lib/cadet/assessments/assessments.ex

@@ -968,10 +968,9 @@ defmodule Cadet.Assessments do
 
   def is_team_assessment?(assessment_id) when is_ecto_id(assessment_id) do
     max_team_size =
-      from(a in Assessment,
-        where: a.id == ^assessment_id,
-        select: a.max_team_size
-      )
+      Assessment
+      |> where(id: ^assessment_id)
+      |> select(:max_team_size)
       |> Repo.one()
 
     max_team_size > 1

test/cadet/jobs/autograder/utilities_test.exs

@@ -162,7 +162,8 @@ defmodule Cadet.Autograder.UtilitiesTest do
         )
 
       expected =
-        Enum.flat_map(teams, & &1.team_members)
+        teams
+        |> Enum.flat_map(& &1.team_members)
         |> Enum.map(
           &%{
             student_id: &1.student_id,