Metadata for fcitx5-lua in testing

<component type="addon">
  <id>org.fcitx.Fcitx5.Addon.Lua</id>
  <name>Lua support</name>
  <summary>Add Lua support to Fcitx 5</summary>
  <project_license>LGPL-2.1+</project_license>
  <project_group>Fcitx</project_group>
  <extends>org.fcitx.Fcitx5</extends>
  <pkgname>fcitx5-lua</pkgname>
  <url type="homepage">https://fcitx-im.org</url>
  <url type="bugtracker">https://github.com/fcitx/fcitx5-lua/issues</url>
  <releases>
    <release type="stable" version="5.0.12" timestamp="1704153600"/>
    <release type="stable" version="5.0.11" timestamp="1695945600"/>
    <release type="stable" version="5.0.10" timestamp="1661731200"/>
    <release type="stable" version="5.0.9" timestamp="1656806400"/>
  </releases>
  <content_rating type="oars-1.1"/>
</component>