Hints for gtkwave in main

Hints

• asv-developer-name-tag-deprecated
  io.github.gtkwave.GTKWave.metainfo.xml:8 -
  The toplevel `developer_name` element is deprecated. Please use the `name` element in a `developer` block instead.
• asv-url-not-secure
  io.github.gtkwave.GTKWave.metainfo.xml:24 - http://gtkwave.sourceforge.net/
  Consider using a secure (HTTPS) URL for this web link.
• asv-screenshot-media-url-not-secure
  io.github.gtkwave.GTKWave.metainfo.xml:30 - http://gtkwave.sourceforge.net/gtkwave-appdata.png
  Consider using a secure (HTTPS) URL to reference this screenshot image or video.
• asv-developer-info-missing
  io.github.gtkwave.GTKWave.metainfo.xml -
  This component contains no `developer` element with information about its author.