Fix package migrations, update deps

packages/zammad-addon-leafcutter/src/db/addon/leafcutter/20220901000000_leafcutter_tags.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+# create core Leafcutter tags
+class LeafcutterTags1 < ActiveRecord::Migration[5.2]
+  def self.up
+    Tag::Item.create(name: 'example_group:example_tag')
+  end
+
+  def self.down
+    t = Tag::Item.find_by(name: 'example_group:example_tag')
+    return if t.nil?
+
+    t.destroy
+  end
+end