appdata: Fix incorrect release tag info
Due to incorrect release info, Debian appstream produces no release information as shown below:
Releases:
- version: '44.0'
type: stable
unix-timestamp: 1679184000
- version: '43.0'
type: stable
unix-timestamp: 1663459200
- version: 43~rc
type: development
unix-timestamp: 1662163200
- version: 43~beta
type: development
unix-timestamp: 1659830400
This causes GNOME Software to display empty or less useful information. Fixed with the following command:
$ appstreamcli validate org.gnome.Characters.appdata.xml
Refer: https://appstream.debian.org/sid/main/issues/gnome-characters.html.
Refer: gnome-software#2251