File _link of Package nextcloud-apps-announcementcenter

<link project="home:darix:apps" package="nextcloud-apps-announcementcenter" rev="20" baserev="c384ca92c3d1e68cc7d9dc9d51cdcb44">
  <patches>
    <delete name="announcementcenter-v7.1.0.tar.gz"/>
    <apply name="project.diff"/>
  </patches>
</link>