Apply Layout/IndentAssignment rubocop rule

There was one place where we weren't applying it.

.rubocop.yml

@@ -58,6 +58,9 @@ Layout/EndOfLine:
 Layout/ExtraSpacing:
   Enabled: true
 
+Layout/IndentAssignment:
+  Enabled: true
+
 Layout/IndentationConsistency:
   EnforcedStyle: indented_internal_methods
 

app/controllers/dashboard/achievements_controller.rb

@@ -36,12 +36,12 @@ class Dashboard::AchievementsController < Dashboard::BaseController
 
     def executed_proposed_actions
       @executed_proposed_actions ||=
-      Dashboard::ExecutedAction
-        .joins(:action)
-        .includes(:action)
-        .where(proposal: proposal)
-        .where(executed_at: start_date.beginning_of_day..end_date.end_of_day)
-        .where(dashboard_actions: { action_type: 0 })
-        .order(executed_at: :asc)
+        Dashboard::ExecutedAction
+          .joins(:action)
+          .includes(:action)
+          .where(proposal: proposal)
+          .where(executed_at: start_date.beginning_of_day..end_date.end_of_day)
+          .where(dashboard_actions: { action_type: 0 })
+          .order(executed_at: :asc)
     end
 end