Update schema

db/migrate/20251120203100_add_unique_index_to_card_activity_spikes_on_card_id.rb

@@ -1,13 +1,15 @@
 class AddUniqueIndexToCardActivitySpikesOnCardId < ActiveRecord::Migration[8.2]
   def change
-    reversible do |dir|
-      dir.up do
-        execute <<-SQL
-          DELETE s1 FROM card_activity_spikes s1
-          INNER JOIN card_activity_spikes s2
-          WHERE s1.card_id = s2.card_id
-          AND s1.updated_at < s2.updated_at
-        SQL
+    if ActiveRecord::Base.connection.adapter_name != "SQLite"
+      reversible do |dir|
+        dir.up do
+          execute <<-SQL
+            DELETE s1 FROM card_activity_spikes s1
+            INNER JOIN card_activity_spikes s2
+            WHERE s1.card_id = s2.card_id
+            AND s1.updated_at < s2.updated_at
+          SQL
+        end
       end
     end