add metadata to summoner spell

apps/lol_analytics/priv/repo/migrations/20240606222334_summoner_spell_metadata.exs

@@ -0,0 +1,9 @@
+defmodule LoLAnalytics.Repo.Migrations.SummonerSpellMetadata do
+  use Ecto.Migration
+
+  def change do
+    alter table("dim_summoner_spell") do
+      add :metadata, :map
+    end
+  end
+end

apps/lol_analytics/priv/repo/migrations/20240606222701_summoner_spell_metadata_index.exs

@@ -0,0 +1,11 @@
+defmodule LoLAnalytics.Repo.Migrations.SummonerSpellMetadataIndex do
+  use Ecto.Migration
+
+  def up do
+    execute("CREATE INDEX dim_summoner_spell_metadata ON dim_summoner_spell USING GIN(metadata)")
+  end
+
+  def down do
+    execute("DROP INDEX dim_summoner_spell_metadata")
+  end
+end