bulk upload years now dynamic

app/models/forms/bulk_upload_lettings/year.rb

@@ -27,6 +27,12 @@ module Forms
         bulk_upload_lettings_log_path(id: "prepare-your-file", form: { year: })
       end
 
+    private
+
+      def possible_years
+        FormHandler.instance.lettings_forms.values.map { |form| form.start_date.year }.sort.reverse
+      end
+
     private
 
       def possible_years

app/models/forms/bulk_upload_sales/year.rb

@@ -27,6 +27,12 @@ module Forms
         bulk_upload_sales_log_path(id: "prepare-your-file", form: { year: })
       end
 
+    private
+
+      def possible_years
+        FormHandler.instance.sales_forms.values.map { |form| form.start_date.year }.sort.reverse
+      end
+
     private
 
       def possible_years