[PRQ#75507] Deletion Request for gstreamer-thumbnailer

lufog [1] filed a deletion request for gstreamer-thumbnailer [2]: Package was renamed to [gst-video- thumbnailer](https://aur.archlinux.org/packages/gst-video- thumbnailer). Since the package was posted recently and has not yet collected votes/comments, there is no point in merging it. [1] https://aur.archlinux.org/account/lufog/ [2] https://aur.archlinux.org/pkgbase/gstreamer-thumbnailer/