Edit the Td/IPV SNOMED code via a data migration

This must be edited directly, rather than using `rake vaccines:seed`,
because the rake task uses the SNOMED code as the identifier for the
vaccine. This means that it tries to create a new `Vaccine` instead
of editing the existing one.

Jira-Issue: MAV-7480

Author: alistair-white-horne-tng

db/data/20260501085904_edit_tdipv_snomed_code.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class EditTdipvSnomedCode < ActiveRecord::Migration[8.1]
+  def change
+    vaccine = Vaccine.find_by(upload_name: "Revaxis")
+    Rails.logger.debug "Editing vaccine #{vaccine.id}..."
+
+    vaccine.update!(
+      snomed_product_code: "7374311000001101",
+      snomed_product_term: "Revaxis vaccine suspension for injection 0.5ml pre-filled syringes (Sanofi)"
+    )
+
+    Rails.logger.debug "Vaccine #{vaccine.id} updated."
+  end
+end

db/data_schema.rb

@@ -1 +1 @@
-DataMigrate::Data.define(version: 2026_04_22_155320)
+DataMigrate::Data.define(version: 2026_05_01_085904)