DEV: Fix mismatched column types (#329)

The primary key is usually a bigint column, but the foreign key columns
are usually of integer type. This can lead to issues when joining these
columns due to mismatched types and different value ranges.

db/migrate/20241009161603_alter_query_id_to_bigint.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class AlterQueryIdToBigint < ActiveRecord::Migration[7.1]
+  def up
+    change_column :data_explorer_query_groups, :query_id, :bigint
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end